Update dependency com_google_protobuf to v31

Author: renovate[bot]

WORKSPACE

@@ -35,9 +35,9 @@ http_archive(
 
 http_archive(
     name = "com_google_protobuf",
-    sha256 = "7c3ebd7aaedd86fa5dc479a0fda803f602caaf78d8aff7ce83b89e1b8ae7442a",
-    strip_prefix = "protobuf-28.3",
-    url = "https://github.com/protocolbuffers/protobuf/archive/refs/tags/v28.3.tar.gz",
+    sha256 = "c3a0a9ece8932e31c3b736e2db18b1c42e7070cd9b881388b26d01aa71e24ca2",
+    strip_prefix = "protobuf-31.1",
+    url = "https://github.com/protocolbuffers/protobuf/archive/refs/tags/v31.1.tar.gz",
 )
 
 http_archive(