tests: explicitly disable bzlmod for pip_parse_vendored example (#1529)

Bazel at head enables bzlmod by default, but the pip_parse_vendored
example doesn't work
under bzlmod.

To fix, explicitly disable bzlmod because vendoring requirements.bzl
files isn't necessary
under bzlmod. This is because the pip bzlmod extension handles creating
repos directly
from the locked requirements file (which is the output of the pip
dependency resolution
process).

While we're here, also enable `incompatible_generate_aliases = True`, in
preparation for
that being switched.

examples/pip_parse_vendored/.bazelrc

@@ -3,3 +3,7 @@ test --test_output=errors
 # Windows requires these for multi-python support:
 build --enable_runfiles
 startup --windows_enable_symlinks
+
+# Vendoring requirements.bzl files isn't necessary under bzlmod
+# When workspace support is dropped, this example can be removed.
+build --noexperimental_enable_bzlmod

examples/pip_parse_vendored/WORKSPACE

@@ -21,6 +21,7 @@ load("@rules_python//python:pip.bzl", "pip_parse")
 # It also wouldn't be needed by users of this ruleset.
 pip_parse(
     name = "pip",
+    incompatible_generate_aliases = True,
     python_interpreter_target = interpreter,
     requirements_lock = "//:requirements.txt",
 )

examples/pip_parse_vendored/requirements.bzl

@@ -7,11 +7,11 @@ from //:requirements.txt
 load("@python39//:defs.bzl", "interpreter")
 load("@rules_python//python/pip_install:pip_repository.bzl", "whl_library")
 
-all_requirements = ["@pip_certifi//:pkg", "@pip_charset_normalizer//:pkg", "@pip_idna//:pkg", "@pip_requests//:pkg", "@pip_urllib3//:pkg"]
+all_requirements = ["@pip//certifi", "@pip//charset_normalizer", "@pip//idna", "@pip//requests", "@pip//urllib3"]
 
-all_whl_requirements = ["@pip_certifi//:whl", "@pip_charset_normalizer//:whl", "@pip_idna//:whl", "@pip_requests//:whl", "@pip_urllib3//:whl"]
+all_whl_requirements = ["@pip//certifi:whl", "@pip//charset_normalizer:whl", "@pip//idna:whl", "@pip//requests:whl", "@pip//urllib3:whl"]
 
-all_data_requirements = ["@pip_certifi//:data", "@pip_charset_normalizer//:data", "@pip_idna//:data", "@pip_requests//:data", "@pip_urllib3//:data"]
+all_data_requirements = ["@pip//certifi:data", "@pip//charset_normalizer:data", "@pip//idna:data", "@pip//requests:data", "@pip//urllib3:data"]
 
 _packages = [("pip_certifi", "certifi==2023.7.22     --hash=sha256:539cc1d13202e33ca466e88b2807e29f4c13049d6d87031a3c110744495cb082     --hash=sha256:92d6037539857d8206b8f6ae472e8b77db8058fec5937a1ef3f54304089edbb9"), ("pip_charset_normalizer", "charset-normalizer==2.1.1     --hash=sha256:5a3d016c7c547f69d6f81fb0db9449ce888b418b5b9952cc5e6e66843e9dd845     --hash=sha256:83e9a75d1911279afd89352c68b45348559d1fc0506b054b346651b5e7fee29f"), ("pip_idna", "idna==3.4     --hash=sha256:814f528e8dead7d329833b91c5faa87d60bf71824cd12a7530b5526063d02cb4     --hash=sha256:90b77e79eaa3eba6de819a0c442c0b4ceefc341a7a2ab77d7562bf49f425c5c2"), ("pip_requests", "requests==2.28.1     --hash=sha256:7c5599b102feddaa661c826c56ab4fee28bfd17f5abca1ebbe3e7f19d7c97983     --hash=sha256:8fefa2a1a1365bf5520aac41836fbee479da67864514bdb821f31ce07ce65349"), ("pip_urllib3", "urllib3==1.26.13     --hash=sha256:47cc05d99aaa09c9e72ed5809b60e7ba354e64b59c9c173ac3018642d8bb41fc     --hash=sha256:c083dd0dce68dbfbe1129d5271cb90f9447dea7d52097c6e0126120c521ddea8")]
 _config = {"download_only": False, "enable_implicit_namespace_pkgs": False, "environment": {}, "extra_pip_args": [], "isolated": True, "pip_data_exclude": [], "python_interpreter": "python3", "python_interpreter_target": interpreter, "quiet": True, "repo": "pip", "repo_prefix": "pip_", "timeout": 600}