chore(deps): bump google.golang.org/api from 0.120.0 to 0.121.0 (#2496)

Bumps [google.golang.org/api](https://github.com/googleapis/google-api-go-client) from 0.120.0 to 0.121.0.
- [Release notes](https://github.com/googleapis/google-api-go-client/releases)
- [Changelog](https://github.com/googleapis/google-api-go-client/blob/main/CHANGES.md)
- [Commits](https://github.com/googleapis/google-api-go-client/compare/v0.120.0...v0.121.0)

---
updated-dependencies:
- dependency-name: google.golang.org/api
  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>

vendor/github.com/google/s2a-go/.gitignore

@@ -1,11 +1,6 @@
-bazel-*
-
 # Ignore binaries without extension
 //example/client/client
 //example/server/server
 //internal/v2/fakes2av2_server/fakes2av2_server
 
-.idea/
-
-*BUILD.bazel
-WORKSPACE
+.idea/

vendor/github.com/google/s2a-go/internal/v2/s2av2.go

@@ -131,6 +131,7 @@ func (c *s2av2TransportCreds) ClientHandshake(ctx context.Context, serverAuthori
 		}
 		return nil, nil, err
 	}
+	defer cstream.CloseSend()
 	if grpclog.V(1) {
 		grpclog.Infof("Connected to S2Av2.")
 	}
@@ -192,6 +193,7 @@ func (c *s2av2TransportCreds) ServerHandshake(rawConn net.Conn) (net.Conn, crede
 		grpclog.Infof("Failed to connect to S2Av2: %v", err)
 		return nil, nil, err
 	}
+	defer cstream.CloseSend()
 	if grpclog.V(1) {
 		grpclog.Infof("Connected to S2Av2.")
 	}