fix(deps): require protobuf <4.0.0dev (#167)

* fix(deps): require protobuf <4.0.0dev * update constraints

Author: parthea

setup.py

@@ -29,9 +29,9 @@
  # Until this issue is closed
  # https://github.com/googleapis/google-cloud-python/issues/10566
  "google-api-core[grpc] >= 1.31.5, <3.0.0dev,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.0",
- "proto-plus >= 1.18.1",
- "grpc-google-iam-v1",
- "six",
+ "proto-plus >= 1.18.1, <2.0.0dev",
+ "protobuf >= 3.19.0, <4.0.0dev",
+ "grpc-google-iam-v1 >=0.12.4, <1.0.0dev",
 ]
 
 package_root = os.path.abspath(os.path.dirname(__file__))

testing/constraints-3.6.txt

@@ -7,5 +7,5 @@
 # Then this file should have foo==1.14.0
 google-api-core==1.31.5
 proto-plus==1.18.1
-grpc-google-iam-v1==0.12.3
-six==1.13.0
+grpc-google-iam-v1==0.12.4
+protobuf==3.19.0