Merge pull request #1490 from jjardon/jjardon/grpcio_1.34_master

requirements/requirements.in: It depends on grpc >= 1.34
diff --git a/requirements/requirements.in b/requirements/requirements.in
index f62623f..b393f71 100644
--- a/requirements/requirements.in
+++ b/requirements/requirements.in
@@ -1,5 +1,5 @@
 Click >= 7.0
-grpcio >= 1.10
+grpcio >= 1.34
 Jinja2 >= 2.10
 pluginbase
 protobuf >= 3.6