Upgrade GitHub Actions to latest versions

[salmanmkc]

Summary

Upgrade GitHub Actions to their latest versions for improved features, bug fixes, and security updates.

Changes

Action	Old Version(s)	New Version	Release	Files
PyO3/maturin-action	e10f6c4	b1bd829	Release	maturin_ci.yml
actions-rust-lang/setup-rust-toolchain	fb51252	1780873	Release	base_benchmarks.yml, fork_pr_benchmarks_run.yml, rust_ci.yml
bencherdev/bencher	f89d454	8151077	Release	base_benchmarks.yml, fork_pr_benchmarks_run.yml, fork_pr_benchmarks_track.yml
coverallsapp/github-action	648a8eb	5cbfd81	Release	pytest.yml
dawidd6/action-download-artifact	5c98f0b	fe9d59c	Release	fork_pr_benchmarks_track.yml
withastro/action	2226b56	15aa0a5	Release	deploy.yml

Why upgrade?

Keeping GitHub Actions up to date ensures:

• Security: Latest security patches and fixes
• Features: Access to new functionality and improvements
• Compatibility: Better support for current GitHub features
• Performance: Optimizations and efficiency improvements

⚠️ Breaking Changes

• dawidd6/action-download-artifact (v14 → v15): Major version upgrade — review the release notes for breaking changes
• withastro/action (v4 → v5): Major version upgrade — review the release notes for breaking changes

Security Note

Actions that were previously pinned to commit SHAs remain pinned to SHAs (updated to the latest release SHA) to maintain the security benefits of immutable references.

Testing

These changes only affect CI/CD workflow configurations and should not impact application functionality. The workflows should be tested by running them on a branch before merging.

[gemini-code-assist]

Note

Gemini is unable to generate a summary for this pull request due to the file types involved not being currently supported.