build(deps): bump software.amazon.awssdk:bom from 2.15.4 to 2.15.5 (aws-powertools#129)

Bumps [software.amazon.awssdk:bom](https://github.com/aws/aws-sdk-java-v2) from 2.15.4 to 2.15.5.
- [Release notes](https://github.com/aws/aws-sdk-java-v2/releases)
- [Changelog](https://github.com/aws/aws-sdk-java-v2/blob/master/CHANGELOG.md)
- [Commits](aws/aws-sdk-java-v2@2.15.4...2.15.5)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -54,7 +54,7 @@
         <log4j.version>2.13.3</log4j.version>
         <jackson.version>2.11.3</jackson.version>
         <aspectj.version>1.9.6</aspectj.version>
-        <aws.sdk.version>2.15.4</aws.sdk.version>
+        <aws.sdk.version>2.15.5</aws.sdk.version>
         <aws.xray.recorder.version>2.7.1</aws.xray.recorder.version>
         <payloadoffloading-common.version>1.1.0</payloadoffloading-common.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>