Specify grpcio, protobuf test deps, instead of grpcio-tools (#1924)

* try grpcio test dep, instead of grpcio-tools

* Add missing protobuf dependencies

Author: ni-jfitzger

tox-travis.ini

@@ -125,7 +125,8 @@ deps =
     test: mako
     test: numpy
     test: hightime
-    test: grpcio-tools == 1.49.1
+    test: grpcio == 1.49.1  # Compatible with grpcio-tools 1.49.1
+    test: protobuf == 4.21  # Compatible with grpcio-tools 1.49.1
     build_test: pytest
     build_test: coverage
     build_test: mako

tox.ini

@@ -125,7 +125,8 @@ deps =
     test: mako
     test: numpy
     test: hightime
-    test: grpcio-tools == 1.49.1
+    test: grpcio == 1.49.1  # Compatible with grpcio-tools 1.49.1
+    test: protobuf == 4.21  # Compatible with grpcio-tools 1.49.1
     build_test: pytest
     build_test: coverage
     build_test: mako