Bump com.google.cloud:google-cloud-core-http in /plugins/repository-gcs

Bumps com.google.cloud:google-cloud-core-http from 2.21.0 to 2.21.1.

---
updated-dependencies:
- dependency-name: com.google.cloud:google-cloud-core-http
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

plugins/repository-gcs/build.gradle

@@ -67,7 +67,7 @@ dependencies {
   api "com.google.auth:google-auth-library-oauth2-http:${versions.google_auth}"
 
   api 'com.google.cloud:google-cloud-core:2.5.10'
-  api 'com.google.cloud:google-cloud-core-http:2.21.0'
+  api 'com.google.cloud:google-cloud-core-http:2.21.1'
   api 'com.google.cloud:google-cloud-storage:1.113.1'
 
   api 'com.google.code.gson:gson:2.9.0'