rebase: bump google.golang.org/grpc from 1.62.1 to 1.63.2

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.62.1 to 1.63.2.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.62.1...v1.63.2)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

vendor/google.golang.org/grpc/rpc_util.go

@@ -962,19 +962,6 @@ func setCallInfoCodec(c *callInfo) error {
 	return nil
 }
 
-// channelzData is used to store channelz related data for ClientConn, addrConn and Server.
-// These fields cannot be embedded in the original structs (e.g. ClientConn), since to do atomic
-// operation on int64 variable on 32-bit machine, user is responsible to enforce memory alignment.
-// Here, by grouping those int64 fields inside a struct, we are enforcing the alignment.
-type channelzData struct {
-	callsStarted   int64
-	callsFailed    int64
-	callsSucceeded int64
-	// lastCallStartedTime stores the timestamp that last call starts. It is of int64 type instead of
-	// time.Time since it's more costly to atomically update time.Time variable than int64 variable.
-	lastCallStartedTime int64
-}
-
 // The SupportPackageIsVersion variables are referenced from generated protocol
 // buffer files to ensure compatibility with the gRPC version used.  The latest
 // support package version is 7.