Update io_grpc_proto digest to ec30f58

Author: renovate[bot]

WORKSPACE

@@ -63,9 +63,9 @@ http_archive(
 
 http_archive(
     name = "io_grpc_proto",
-    sha256 = "f081eba5884bf09051d27664aede4fc22bbaa77da477735d745bcef17bd088f1",
-    strip_prefix = "grpc-proto-ec886024c2f7b7f597ba89d5b7d60c3f94627b17",
-    urls = ["https://github.com/grpc/grpc-proto/archive/ec886024c2f7b7f597ba89d5b7d60c3f94627b17.tar.gz"],
+    sha256 = "5e9b520b22afbd53a662cc29017064be253c1dfa6df8958738594e7fec6ade33",
+    strip_prefix = "grpc-proto-ec30f589e2519d595688b9a42f88a91bdd6b733f",
+    urls = ["https://github.com/grpc/grpc-proto/archive/ec30f589e2519d595688b9a42f88a91bdd6b733f.tar.gz"],
 )
 
 http_archive(