deps/api: Bump `rules_proto_grpc` -> 4.6.0 (#33689)

Signed-off-by: Ryan Northey <ryan@synca.io>
Co-authored-by: dependency-envoy[bot] <148525496+dependency-envoy[bot]@users.noreply.github.com>

Mirrored from https://github.com/envoyproxy/envoy @ 34bd1df90994d6d4d25ac6ff3d3209c5660fe48d

bazel/repository_locations.bzl

@@ -166,12 +166,12 @@ REPOSITORY_LOCATIONS_SPEC = dict(
         project_name = "rules_proto_grpc",
         project_desc = "Bazel rules for building Protobuf and gRPC code and libraries from proto_library targets ",
         project_url = "https://github.com/rules-proto-grpc/rules_proto_grpc",
-        version = "4.4.0",
+        version = "4.6.0",
-        sha256 = "928e4205f701b7798ce32f3d2171c1918b363e9a600390a25c876f075f1efc0a",
+        sha256 = "2a0860a336ae836b54671cbbe0710eec17c64ef70c4c5a88ccfd47ea6e3739bd",
         strip_prefix = "rules_proto_grpc-{version}",
         urls = ["https://github.com/rules-proto-grpc/rules_proto_grpc/releases/download/{version}/rules_proto_grpc-{version}.tar.gz"],
         use_category = ["build"],
-        release_date = "2023-05-03",
+        release_date = "2023-12-14",
     ),
     envoy_toolshed = dict(
         project_name = "envoy_toolshed",