Change submodule head

keigohtr · keigohtr · commit 87f57c493f25 · 2018-08-08T10:34:59.000+09:00
diff --git a/drucker-grpc-proto b/drucker-grpc-proto
@@ -1 +1 @@
-Subproject commit b86b4339dc8ed2de4e63c7a3f6452b5fced5c9ad
+Subproject commit a47bc217305faa7a6109a25266bb219ae9599a95
