fix(python-build): disable tests/extras bconds to fix BR-unresolvable nightly failure

[WithEnoughCoffee]

Summary

Disable tests and extras bconds for python-build to resolve buildroot resolution failure (mock exit 30) in Koji nightly builds (taskID 2593995).

Problem

The tests bcond (enabled by default when %rhel is undefined) causes %pyproject_buildrequires -g test to generate dynamic BuildRequires for test dependencies (filelock, pytest-mock, setuptools_scm, etc.) that may not be published in the Koji build tag at build time.

Fix

Add build.without = ["extras", "tests"] — aligning with RHEL behavior. The %pyproject_check_import basic sanity check still runs.

Testing

• Build succeeded in mock chroot
• %pyproject_check_import passes

References

• Koji task: https://52.249.25.247/koji/taskinfo?taskID=2593995
• Split from AB#20330

[Copilot]

Pull request overview

This PR adjusts Azure Linux component configurations and their rendered specs to address Koji nightly buildroot resolution failures by reducing dynamic/unavailable BuildRequires (notably around Rust crates/AVIF for librsvg2, and extras/tests dependency discovery for python-build).

Changes:

• librsvg2: enable bundled Rust deps, drop Fedora rust-toolset BR, and force AVIF disabled in %build.
• python-build: introduce a dedicated component config disabling extras/tests bconds to avoid non-deterministic BR resolution, and update lock/rendered outputs accordingly.
• Update rendered specs/sidecar macros and lock fingerprint to match the new component configuration.

Reviewed changes

Copilot reviewed 6 out of 8 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
base/comps/librsvg2/librsvg2.comp.toml	Adds overlays to vendor Rust deps and adjust BRs/meson flags for AZL.
specs/l/librsvg2/librsvg2.spec	Rendered spec reflecting the new librsvg2 overlay effects (bundled deps/BR changes/AVIF disabled).
base/comps/python-build/python-build.comp.toml	Adds a dedicated component file disabling extras/tests to avoid dynamic BR scheduling issues.
locks/python-build.lock	Updates input fingerprint due to component config change.
specs/p/python-build/python-build.spec	Rendered python-build spec now loading the generated macros and carrying the updated changelog/release.
specs/p/python-build/python-build.azl.macros	New azldev-generated macros sidecar implementing build.without toggles.
base/comps/components.toml	Removes python-build from the inline “unmodified” component list since it’s now customized via a dedicated comp file.