Bump aws-java-sdk.version from 2.19.13 to 2.20.15

Bumps `aws-java-sdk.version` from 2.19.13 to 2.20.15.

Updates `sqs` from 2.19.13 to 2.20.15

Updates `auth` from 2.19.13 to 2.20.15

Updates `utils` from 2.19.13 to 2.20.15
- [Release notes](https://github.com/aws/aws-sdk-java-v2/releases)
- [Changelog](https://github.com/aws/aws-sdk-java-v2/blob/master/docs/LaunchChangelog.md)
- [Commits](aws/aws-sdk-java-v2@2.19.13...2.20.15)

---
updated-dependencies:
- dependency-name: software.amazon.awssdk:sqs
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: software.amazon.awssdk:auth
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: software.amazon.awssdk:utils
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -30,7 +30,7 @@
         </developer>
     </developers>
     <properties>
-        <aws-java-sdk.version>2.19.13</aws-java-sdk.version>
+        <aws-java-sdk.version>2.20.15</aws-java-sdk.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>