test: fix ubuntu distro

Author: durran

.evergreen/ci_matrix_constants.js

@@ -17,7 +17,7 @@ const DEFAULT_OS = 'rhel80-large';
 const WINDOWS_OS = 'windows-vsCurrent-large';
 const MACOS_OS = 'macos-1100';
 const UBUNTU_OS = 'ubuntu1804-large';
-const UBUNTU_20_OS = 'ubuntu1004-small'
+const UBUNTU_20_OS = 'ubuntu2004-small'
 const DEBIAN_OS = 'debian11-small';
 
 module.exports = {

.evergreen/config.yml

@@ -4042,7 +4042,7 @@ buildvariants:
       - test-azurekms-fail-task
   - name: ubuntu20-test-azure-oidc
     display_name: Azure OIDC
-    run_on: ubuntu1004-small
+    run_on: ubuntu2004-small
     batchtime: 20160
     tasks:
       - testazureoidc_task_group