Incorporate rules_{python,proto} for bazel_tools

Since bazelbuild/bazel#17545, bazel_tools apparantly requires
rules_python and rules_proto to successfully parse under bazel (load
lines only). We only use affected bazel_tools (src/main/protobuf) in
persistentworkers. Import these repositories to reinstate downstream CI
passing.

deps.bzl

@@ -121,6 +121,20 @@ def archive_dependencies(third_party):
             "patch_args": ["-p1"],
             "patches": ["%s/bazel:bazel_visibility.patch" % third_party],
         },
+        {
+            "name": "rules_python",
+            "sha256": "ffc7b877c95413c82bfd5482c017edcf759a6250d8b24e82f41f3c8b8d9e287e",
+            "strip_prefix": "rules_python-0.19.0",
+            "urls": ["https://github.com/bazelbuild/rules_python/releases/download/0.19.0/rules_python-0.19.0.tar.gz"],
+        },
+        {
+            "name": "rules_proto",
+            "sha256": "dc3fb206a2cb3441b485eb1e423165b231235a1ea9b031b4433cf7bc1fa460dd",
+            "strip_prefix": "rules_proto-5.3.0-21.7",
+            "urls": [
+                "https://github.com/bazelbuild/rules_proto/archive/refs/tags/5.3.0-21.7.tar.gz",
+            ],
+        },
 
         # Optional execution wrappers
         {