[github-actions]: Bump aws-actions/aws-secretsmanager-get-secrets (aws#251)

Bumps [aws-actions/aws-secretsmanager-get-secrets](https://github.com/aws-actions/aws-secretsmanager-get-secrets) from 2 to 3.
- [Release notes](https://github.com/aws-actions/aws-secretsmanager-get-secrets/releases)
- [Commits](aws-actions/aws-secretsmanager-get-secrets@v2...v3)

---
updated-dependencies:
- dependency-name: aws-actions/aws-secretsmanager-get-secrets
  dependency-version: '3'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Author: dependabot[bot]

.github/workflows/release_maven.yml

@@ -79,7 +79,7 @@ jobs:
             sdk-testing/target/aws-durable-execution-sdk-java-testing-${{ github.event.inputs.release_version }}.jar
       
       - name: Get Env variables
-        uses: aws-actions/aws-secretsmanager-get-secrets@v2
+        uses: aws-actions/aws-secretsmanager-get-secrets@v3
         with:
             secret-ids: |
                 mvn_gpg_keys