build(deps): bump grpcio from 1.64.0 to 1.64.1

Bumps [grpcio](https://github.com/grpc/grpc) from 1.64.0 to 1.64.1.
- [Release notes](https://github.com/grpc/grpc/releases)
- [Changelog](https://github.com/grpc/grpc/blob/master/doc/grpc_release_schedule.md)
- [Commits](https://github.com/grpc/grpc/compare/v1.64.0...v1.64.1)

---
updated-dependencies:
- dependency-name: grpcio
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -48,7 +48,7 @@ google-cloud-ndb==2.3.1
 google-cloud-tasks==2.16.3
 googleapis-common-protos==1.63.0
 grpc-google-iam-v1==0.13.0
-grpcio==1.64.0
+grpcio==1.64.1
 grpcio-status==1.62.2
 gunicorn==22.0.0
 h11==0.14.0