chore(deps): bump google.golang.org/grpc from 1.59.0 to 1.60.0 (#64)

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.59.0 to 1.60.0.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](grpc/grpc-go@v1.59.0...v1.60.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -3,8 +3,8 @@ module go.flipt.io/flipt-grpc
 go 1.17
 
 require (
-	google.golang.org/genproto/googleapis/api v0.0.0-20230822172742-b8732ec3820d
-	google.golang.org/grpc v1.59.0
+	google.golang.org/genproto/googleapis/api v0.0.0-20231002182017-d307bd883b97
+	google.golang.org/grpc v1.60.0
 	google.golang.org/protobuf v1.31.0
 )
 
@@ -13,5 +13,5 @@ require (
 	golang.org/x/net v0.17.0 // indirect
 	golang.org/x/sys v0.13.0 // indirect
 	golang.org/x/text v0.13.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20230822172742-b8732ec3820d // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20231002182017-d307bd883b97 // indirect
 )