release.py - Auto-update setuptools upper bound (#83713)

When releases are prepared, the upper bound on setuptools in pyproject.toml will be automatically updated
to the latest version available on PyPI. This version will then be tested by the package-data sanity test
during the release process and will be used to build the release.

This change ensures that a released version of ansible-core can be built in the future if a new setuptools
release includes breaking changes that would prevent building a functional package. If a downstream package
maintainer requires a newer setuptools version than the upper bound permits, they can patch pyproject.toml
as needed. Since ansible-core releases support specific Python versions, lack of support for new setuptools
releases will have no effect on support for future Python versions.

test/sanity/code-smell/package-data.py

@@ -95,7 +95,7 @@ def clean_repository(complete_file_list: list[str]) -> t.Generator[str, None, No
 def build(source_dir: str, tmp_dir: str) -> tuple[pathlib.Path, pathlib.Path]:
     """Create a sdist and wheel."""
     create = subprocess.run(
-        [sys.executable, '-m', 'build', '--no-isolation', '--outdir', tmp_dir],
+        [sys.executable, '-m', 'build', '--outdir', tmp_dir],
         stdin=subprocess.DEVNULL,
         capture_output=True,
         text=True,