Bump aws-sdk-iotsitewise in /contrib/cloudformation-template

Bumps [aws-sdk-iotsitewise](https://github.com/aws/aws-sdk-ruby) from 1.3.0 to 1.39.0.
- [Release notes](https://github.com/aws/aws-sdk-ruby/releases)
- [Changelog](https://github.com/aws/aws-sdk-ruby/blob/version-3/gems/aws-sdk-iotsitewise/CHANGELOG.md)
- [Commits](aws/aws-sdk-ruby@1.3.0...v1.39.0)

---
updated-dependencies:
- dependency-name: aws-sdk-iotsitewise
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

contrib/cloudformation-template/Gemfile.lock

@@ -343,8 +343,8 @@ GEM
     aws-sdk-iotsecuretunneling (1.2.0)
       aws-sdk-core (~> 3, >= 3.71.0)
       aws-sigv4 (~> 1.1)
-    aws-sdk-iotsitewise (1.3.0)
-      aws-sdk-core (~> 3, >= 3.71.0)
+    aws-sdk-iotsitewise (1.39.0)
+      aws-sdk-core (~> 3, >= 3.126.0)
       aws-sigv4 (~> 1.1)
     aws-sdk-iotthingsgraph (1.22.0)
       aws-sdk-core (~> 3, >= 3.126.0)