Bump aws-sdk-sns from 1.73.0 to 1.74.0 (#16515)

Bumps [aws-sdk-sns](https://github.com/aws/aws-sdk-ruby) from 1.73.0 to 1.74.0.
- [Release notes](https://github.com/aws/aws-sdk-ruby/releases)
- [Changelog](https://github.com/aws/aws-sdk-ruby/blob/version-3/gems/aws-sdk-sns/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-ruby/commits)

---
updated-dependencies:
- dependency-name: aws-sdk-sns
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -256,8 +256,8 @@ GEM
       aws-sdk-core (~> 3, >= 3.193.0)
       aws-sdk-kms (~> 1)
       aws-sigv4 (~> 1.8)
-    aws-sdk-sns (1.73.0)
-      aws-sdk-core (~> 3, >= 3.191.0)
+    aws-sdk-sns (1.74.0)
+      aws-sdk-core (~> 3, >= 3.193.0)
       aws-sigv4 (~> 1.1)
     aws-sigv4 (1.8.0)
       aws-eventstream (~> 1, >= 1.0.2)