Bump grpcio from 1.30.0 to 1.53.2

Bumps [grpcio](https://github.com/grpc/grpc) from 1.30.0 to 1.53.2.
- [Release notes](https://github.com/grpc/grpc/releases)
- [Changelog](https://github.com/grpc/grpc/blob/master/doc/grpc_release_schedule.md)
- [Commits](grpc/grpc@v1.30.0...v1.53.2)

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

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

requirements.txt

@@ -15,7 +15,7 @@ gast==0.3.3
 google-auth==1.18.0
 google-auth-oauthlib==0.4.1
 google-pasta==0.2.0
-grpcio==1.30.0
+grpcio==1.53.2
 h5py==2.10.0
 hdbscan==0.8.26
 idna==2.9