Change version to 1.47.0-dev (grpc#5298)

Change version to 1.45.0 (grpc#5202)

[skip ci] Skipping Travis. Version number change only

Change version to 1.46.0-dev (grpc#5204)

Change version to 1.44.1-dev (grpc#5121)

* Change version to 1.44.1-dev

[skip ci] Skipping Travis. Version number change only

Change version to 1.45.0-dev (grpc#5122)

cmd/protoc-gen-go-grpc: update version for release (grpc#5070)

Change version to 1.43.0 (grpc#5039)

Change version to 1.44.0-dev (grpc#5041)

Change version to 1.41.1 (grpc#5027)

Change version to 1.40.1 (grpc#5028)