Update protobuf to v3.10.1 and rules_docker to v0.12.1 (#4048)

* update protobuf v3.10.1

* update rules_docker

WORKSPACE

@@ -26,9 +26,9 @@ http_archive(
 
 http_archive(
     name = "io_bazel_rules_docker",
-    sha256 = "9ff889216e28c918811b77999257d4ac001c26c1f7c7fb17a79bc28abf74182e",
-    strip_prefix = "rules_docker-0.10.1",
-    url = "https://github.com/bazelbuild/rules_docker/archive/v0.10.1.tar.gz",
+    #    sha256 = "9ff889216e28c918811b77999257d4ac001c26c1f7c7fb17a79bc28abf74182e",
+    strip_prefix = "rules_docker-0.12.1",
+    url = "https://github.com/bazelbuild/rules_docker/archive/v0.12.1.tar.gz",
 )
 
 http_archive(
@@ -181,7 +181,7 @@ go_repository(
 
 git_repository(
     name = "com_google_protobuf",
-    commit = "09745575a923640154bcf307fba8aedff47f240a",
+    commit = "d09d649aea36f02c03f8396ba39a8d4db8a607e4",
     remote = "https://github.com/protocolbuffers/protobuf",
     shallow_since = "1558721209 -0700",
 )