ci: update RBE toolchain version from ubuntu2204 to ubuntu2404 (#3778)

RBE has dropped support for older platform

Fixing
https://buildkite.com/bazel/rules-python-python/builds/15434#019e2c2c-c708-4c20-bc05-a9a5b1215d2f

(cherry picked from commit 32527de)

ci: soft fail for upcoming bazel job (#3651)

Upcoming RC builds may have regressions, so instead of blocking our CI
on their failures,
mark them as soft-fail. This way we can be aware of upcoming problems,
but not block
regular development.

(cherry picked from commit 6c05d2d)

test: finish fixing the mocks in the pypi_cache

Work towards #3759

fix(pypi): don't resolve python interpreter when not necessary (#3727)

Before the PR we would not set the environment for python
interpreter if we would not need the interpreter, but we
still resolve the python interpreter, which works on some
systems that have a minimal Python installation.

With this change we stop resolving the Python interpreter
in cases were we should not need it. To ensure that we are
not accidentally using it, `python_interpreter` is set to
None when we use `pipstar` and do not do any patching, that
still requires the Python interpreter.

Fixes #3712

---------

Co-authored-by: Ignas Anikevicius <240938+aignas@users.noreply.github.com>
(cherry picked from commit ccdfc8a)

fix(pypi): don't resolve python interpreter when not necessary (#3727)

Before the PR we would not set the environment for python
interpreter if we would not need the interpreter, but we
still resolve the python interpreter, which works on some
systems that have a minimal Python installation.

With this change we stop resolving the Python interpreter
in cases were we should not need it. To ensure that we are
not accidentally using it, `python_interpreter` is set to
None when we use `pipstar` and do not do any patching, that
still requires the Python interpreter.

Fixes #3712

---------

Co-authored-by: Ignas Anikevicius <240938+aignas@users.noreply.github.com>
(cherry picked from commit ccdfc8a)

fix(pypi): build the environment on the fly (#3720)

At some point when we started using pipstar, we silently started
building the python environment with system python interpreter. This is
fine because the environment in those code paths would be unused, but
this would break if python was not present on the machine.

This PR fixes this by creating the environment on the fly with a little
bit of code duplication.

Fixes #3712

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Co-authored-by: Richard Levasseur <richardlev@gmail.com>
(cherry picked from commit 19a2c04)

sphinxdocs: remove local rules_python dev overrides (#3705)

In the BCR integration test, the local override breaks on BCR itself
because a local copy of rules_python isn't part of the test
environment.

Remove it from the sphinxdocs module, too, because it shouldn't
be necessary. The two aren't that closely coupled.

(cherry picked from commit c33ba23)

chore: have no-matching-distribution error message hint about target_…

…platforms vs requirements_by_platform (#3701)

Based on the slack discussion where a cross-build was failing because
`requirements_by_platform` was set, but `target_platforms` wasn't
set, have the error message hint at the distinction to better point
users for how to fix it.

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Ignas Anikevicius <240938+aignas@users.noreply.github.com>
(cherry picked from commit 6e72de2)

chore: populate 2.0 for VERSION_NEXT_FEATURE for py_wheel add_path_pr…

…efix (#3703)

The add_path_prefix feature is in the 2.0 branch, but its version
marker wasn't populated. Set it to 2.0.0

(cherry picked from commit 9790ae0)

feat(pypi): make whl_library reproducible under pipstar (#3589) (#3632)

This is testing the new API to make use of remote caching mechanisms.

Needs: bazelbuild/bazel#27634

---------

(cherry picked from commit 06aa36d)

Co-authored-by: Ignas Anikevicius <240938+aignas@users.noreply.github.com>