build(deps): bump google.golang.org/grpc

Bumps the go_modules group in /examples with 1 update: [google.golang.org/grpc](https://github.com/grpc/grpc-go).


Updates `google.golang.org/grpc` from 1.64.0 to 1.64.1
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.64.0...v1.64.1

)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: direct:production
  dependency-group: go_modules
...

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