Bump aws-sdk-kms from 1.72.0 to 1.73.0

Bumps [aws-sdk-kms](https://github.com/aws/aws-sdk-ruby) from 1.72.0 to 1.73.0.
- [Release notes](https://github.com/aws/aws-sdk-ruby/releases)
- [Changelog](https://github.com/aws/aws-sdk-ruby/blob/version-3/gems/aws-sdk-kms/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-ruby/commits)

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

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

gems.locked

@@ -4,13 +4,13 @@ GEM
     ast (2.4.2)
     aws-eventstream (1.3.0)
     aws-partitions (1.856.0)
-    aws-sdk-core (3.186.0)
+    aws-sdk-core (3.188.0)
       aws-eventstream (~> 1, >= 1.0.2)
       aws-partitions (~> 1, >= 1.651.0)
       aws-sigv4 (~> 1.5)
       jmespath (~> 1, >= 1.6.1)
-    aws-sdk-kms (1.72.0)
-      aws-sdk-core (~> 3, >= 3.184.0)
+    aws-sdk-kms (1.73.0)
+      aws-sdk-core (~> 3, >= 3.188.0)
       aws-sigv4 (~> 1.1)
     aws-sdk-s3 (1.136.0)
       aws-sdk-core (~> 3, >= 3.181.0)