Add `load()` statements for builtin Python rules/providers

PiperOrigin-RevId: 584089414

bazel/BUILD

@@ -26,6 +26,9 @@ py_binary(
 bzl_library(
     name = "py_proto_library_bzl",
     srcs = ["py_proto_library.bzl"],
+    deps = [
+        "@rules_python//python:py_info_bzl",
+    ],
 )
 
 bzl_library(

bazel/py_proto_library.bzl

@@ -15,6 +15,7 @@ But it hasn't been deeply tested or reviewed, and upb should not be in the
 business of vending py_proto_library(), so we keep it private to upb.
 """
 
+load("@rules_python//python:py_info.bzl", "PyInfo")
 load("@bazel_skylib//lib:paths.bzl", "paths")
 
 # begin:github_only

python/pb_unit_tests/pyproto_test_wrapper.bzl

@@ -25,7 +25,7 @@ def pyproto_test_wrapper(name, deps = []):
 
 # begin:google_only
 #
-# load("//third_party/bazel_rules/rules_python/python:py_test.bzl", "py_test")
+# load("@rules_python//python:py_test.bzl", "py_test")
 #
 # def pyproto_test_wrapper(name):
 #     src = name + "_wrapper.py"