Bazel 8 support

[blockjon-dd]

Does rules_pycross support bazel 8? I tried it yesterday and I noticed my python integration did not work.

Here's the show stopper I'm getting:

ERROR: /home/builder/.cache/bazel/_bazel_builder/5ca5f6b08bf6f8bda395a366751f36b0/external/rules_pycross++toolchains+pycross_toolchains/BUILD.bazel:6:33: Illegal ambiguous match on configurable attribute "version" in @@rules_pycross++toolchains+pycross_toolchains//:_interpreter_version:
--
  | @@rules_python+//python/config_settings:is_python_3.11.10
  | @@rules_python+//python/config_settings:is_python_3.11.7
  | Multiple matches are not allowed unless one is unambiguously more specialized or they resolve to the same value. See https://bazel.build/reference/be/functions#select.

[betaboon]

@blockjon-dd do you know which rules_python-version you've been using for this?

I'm asking because i see the same behavior with bazel==7.4.1 + rules_python==1.0.0 + bzlmod

[betaboon]

just as an update. i think this has nothing to do with bazel 8 nor rules_python 1.0.0.

I can see similar behavior with bazel==7.4.1 + rules_python==0.37.0 + bzlmod when registering multiple python.toolchains when eg 3.11.7 is registered while 3.11.10 is the latest patch-level for that minor.

bisecting has uncovered this PR: bazelbuild/rules_python#2253
it has first been included in rules_python==0.37.0

[betaboon]

another update:
I've been able to reproduce the problem all the way down to rules_python==0.36.0.

bisecting has now uncovered this PR: bazelbuild/rules_python#2217 which actually seems related