Bump grpc from 1.53.0 to 1.53.2 in /http2/ruby-grpc

Bumps [grpc](https://github.com/google/grpc) from 1.53.0 to 1.53.2.
- [Release notes](https://github.com/google/grpc/releases)
- [Changelog](https://github.com/grpc/grpc/blob/master/doc/grpc_release_schedule.md)
- [Commits](grpc/grpc@v1.53.0...v1.53.2)

---
updated-dependencies:
- dependency-name: grpc
  dependency-type: direct:production
...

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

http2/ruby-grpc/Gemfile.lock

@@ -1,10 +1,10 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    google-protobuf (3.23.3)
-    googleapis-common-protos-types (1.6.0)
-      google-protobuf (~> 3.14)
-    grpc (1.53.0)
+    google-protobuf (3.25.2)
+    googleapis-common-protos-types (1.12.0)
+      google-protobuf (~> 3.18)
+    grpc (1.53.2)
       google-protobuf (~> 3.21)
       googleapis-common-protos-types (~> 1.0)
     grpc-tools (1.42.0)