test: regression tests for bugs in 5645 and 5644

[beckermr]

Description

This PR adds a test for the regressions reported in #5645 and #5644.

Checklist - did you ...

• Add a file to the news directory (using the template) for the next release's release notes?
• Add / update necessary tests?
• Add / update outdated documentation?

Extra items

• ensure tests fail without revert of Fix transitive subpackage dependency resolution #5603

The test failures in #5649 are:

FAILED tests/test_api_build.py::test_api_build_grpc_issue5632 - conda_libmamba_solver.conda_build_exceptions.ExplainedDependencyNeedsBuildingError: Unsatisfiable dependencies for platform linux-64: {MatchSpec("python==3.11[build=*_cpython]")}
Encountered problems while solving:
  - unsupported request

Could not solve for environment specs
The following package could not be installed
└─ python =3.11,(>=3.10,<3.11.0a0) *_cpython does not exist (perhaps a typo or a missing channel).

This is the correct failure due to the conflicting python specs.

The other test failure for #5644 that I get locally looks correct too:

FAILED

================================================================================ FAILURES ================================================================================
__________________________________________________________________ test_api_build_pytorch_cpu_issue5644 __________________________________________________________________

Traceback (most recent call last):
  File "/Users/beckermr/mambaforge/envs/cf-dev/lib/python3.11/site-packages/conda/models/version.py", line 44, in __call__
    return cls._cache_[arg]
           ~~~~~~~~~~~^^^^^
KeyError: '>=3.10,<3.11.0a0'
...
conda.exceptions.InvalidVersionSpec: Invalid version '>=3.10,<3.11.0a0': invalid character(s)

This looks correct relative to the original issue, but is for a different python version which is fine. I will check back on the CI version in a bit to ensure that works as well.

Yep the test failure is correct:

FAILED tests/test_api_build.py::test_api_build_pytorch_cpu_issue5644 - conda.exceptions.InvalidVersionSpec: Invalid version '>=3.10,<3.11.0a0': invalid character(s)

[codspeed-hq]

CodSpeed Performance Report

Merging #5648 will not alter performance

_{Comparing regr-tests (8c88aed) with 25.3.x (e77c4c6)}

Summary

✅ 5 untouched benchmarks

[beckermr]

@conda/builds-tools This PR is ready for review!

[isuruf]

Thanks

[beckermr]

If you approve the pr @isuruf, we can merge and then check your fix against the new tests.

[isuruf]

Ah, that's what github was waiting for