build(deps): bump google.golang.org/grpc from 1.49.0 to 1.50.1 (#266)

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.49.0 to 1.50.1.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.49.0...v1.50.1)

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

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go.mod

@@ -36,7 +36,7 @@ require (
 	go.unistack.org/micro/v3 v3.9.8
 	golang.org/x/net v0.0.0-20220706163947-c90051bbdb60
 	golang.org/x/tools v0.1.5 // indirect
-	google.golang.org/grpc v1.49.0
+	google.golang.org/grpc v1.50.1
 	google.golang.org/protobuf v1.28.1
 	modernc.org/sqlite v1.19.1
 	storj.io/drpc v0.0.32