chore(rds): bump the parameter group name versions (#29192)

### Issue # (if applicable)

Closes #29184

### Reason for this change

As described in the issue, the example in the README can't be deployed.

### Description of changes

Bump from `default.aurora-postgresql10` to `default.aurora-postgresql11`

### Description of how you validated changes

No.

### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: pahud

packages/aws-cdk-lib/aws-backup/README.md

@@ -39,7 +39,7 @@ const myDatabaseCluster = new rds.DatabaseCluster(this, 'DatabaseCluster', {
 });
 const myServerlessCluster = new rds.ServerlessCluster(this, 'ServerlessCluster', {
   engine: rds.DatabaseClusterEngine.AURORA_POSTGRESQL,
-  parameterGroup: rds.ParameterGroup.fromParameterGroupName(this, 'ParameterGroup', 'default.aurora-postgresql10'),
+  parameterGroup: rds.ParameterGroup.fromParameterGroupName(this, 'ParameterGroup', 'default.aurora-postgresql11'),
   vpc,
 });
 const myCoolConstruct = new Construct(this, 'MyCoolConstruct');

packages/aws-cdk-lib/aws-backup/test/selection.test.ts

@@ -176,7 +176,7 @@ test('fromConstruct', () => {
 
       new rds.ServerlessCluster(this, 'ServerlessCluster', {
         engine: rds.DatabaseClusterEngine.AURORA_POSTGRESQL,
-        parameterGroup: rds.ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql10'),
+        parameterGroup: rds.ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql11'),
         vpc,
       });
     }
@@ -611,7 +611,7 @@ test('fromRdsServerlessCluster', () => {
   const vpc = new ec2.Vpc(stack, 'Vpc');
   const newCluster = new rds.ServerlessCluster(stack, 'New', {
     engine: rds.DatabaseClusterEngine.AURORA_POSTGRESQL,
-    parameterGroup: rds.ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql10'),
+    parameterGroup: rds.ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql11'),
     vpc,
   });
   const existingCluster = rds.ServerlessCluster.fromServerlessClusterAttributes(stack, 'Existing', {

packages/aws-cdk-lib/aws-rds/README.md

@@ -1122,7 +1122,7 @@ declare const vpc: ec2.Vpc;
 const cluster = new rds.ServerlessCluster(this, 'AnotherCluster', {
   engine: rds.DatabaseClusterEngine.AURORA_POSTGRESQL,
   copyTagsToSnapshot: true, // whether to save the cluster tags when creating the snapshot. Default is 'true'
-  parameterGroup: rds.ParameterGroup.fromParameterGroupName(this, 'ParameterGroup', 'default.aurora-postgresql10'),
+  parameterGroup: rds.ParameterGroup.fromParameterGroupName(this, 'ParameterGroup', 'default.aurora-postgresql11'),
   vpc,
   scaling: {
     autoPause: Duration.minutes(10), // default is to pause after 5 minutes of idle time

packages/aws-cdk-lib/aws-rds/test/database-secretmanager.test.ts

@@ -16,14 +16,14 @@ describe('database secret manager', () => {
       engine: DatabaseClusterEngine.AURORA_POSTGRESQL,
       vpc,
       credentials: Credentials.fromSecret(existingSecret),
-      parameterGroup: ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql10'),
+      parameterGroup: ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql11'),
     });
 
     // THEN
     Template.fromStack(stack).hasResource('AWS::RDS::DBCluster', {
       Properties: {
         Engine: 'aurora-postgresql',
-        DBClusterParameterGroupName: 'default.aurora-postgresql10',
+        DBClusterParameterGroupName: 'default.aurora-postgresql11',
         DBSubnetGroupName: {
           Ref: 'ServerlessDatabaseSubnets5643CD76',
         },

packages/aws-cdk-lib/aws-rds/test/serverless-cluster.test.ts

@@ -20,15 +20,15 @@ describe('serverless cluster', () => {
         username: 'admin',
         password: cdk.SecretValue.unsafePlainText('tooshort'),
       },
-      parameterGroup: ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql10'),
+      parameterGroup: ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql11'),
     });
 
     // THEN
     Template.fromStack(stack).hasResource('AWS::RDS::DBCluster', {
       Properties: {
         Engine: 'aurora-postgresql',
         CopyTagsToSnapshot: true,
-        DBClusterParameterGroupName: 'default.aurora-postgresql10',
+        DBClusterParameterGroupName: 'default.aurora-postgresql11',
         DBSubnetGroupName: {
           Ref: 'ServerlessDatabaseSubnets5643CD76',
         },
@@ -113,13 +113,13 @@ describe('serverless cluster', () => {
       engine: DatabaseClusterEngine.AURORA_POSTGRESQL,
       vpc,
       securityGroups: [sg],
-      parameterGroup: ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql10'),
+      parameterGroup: ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql11'),
     });
 
     // THEN
     Template.fromStack(stack).hasResourceProperties('AWS::RDS::DBCluster', {
       Engine: 'aurora-postgresql',
-      DBClusterParameterGroupName: 'default.aurora-postgresql10',
+      DBClusterParameterGroupName: 'default.aurora-postgresql11',
       EngineMode: 'serverless',
       DBSubnetGroupName: { Ref: 'DatabaseSubnets56F17B9A' },
       MasterUsername: {
@@ -892,7 +892,7 @@ describe('serverless cluster', () => {
     // WHEN
     new ServerlessCluster(stack, 'Database', {
       engine: DatabaseClusterEngine.AURORA,
-      parameterGroup: ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql10'),
+      parameterGroup: ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql11'),
     });
 
     // THEN
@@ -909,7 +909,7 @@ describe('serverless cluster', () => {
     new ServerlessCluster(stack, 'Database', {
       engine: DatabaseClusterEngine.AURORA_POSTGRESQL,
       copyTagsToSnapshot: false,
-      parameterGroup: ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql10'),
+      parameterGroup: ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql11'),
     });
 
     // THEN
@@ -926,7 +926,7 @@ describe('serverless cluster', () => {
     new ServerlessCluster(stack, 'Database', {
       engine: DatabaseClusterEngine.AURORA_POSTGRESQL,
       copyTagsToSnapshot: true,
-      parameterGroup: ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql10'),
+      parameterGroup: ParameterGroup.fromParameterGroupName(stack, 'ParameterGroup', 'default.aurora-postgresql11'),
     });
 
     // THEN