Update pip-audit requirement from ~=2.7 to ~=2.9 (#291)

Updates the requirements on [pip-audit](https://github.com/pypa/pip-audit) to permit the latest version.
- [Release notes](https://github.com/pypa/pip-audit/releases)
- [Changelog](https://github.com/pypa/pip-audit/blob/main/CHANGELOG.md)
- [Commits](pypa/pip-audit@v2.7.0...v2.9.0)

---
updated-dependencies:
- dependency-name: pip-audit
  dependency-version: 2.9.0
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements-dev.txt

@@ -4,7 +4,7 @@
 autopep8~=2.3
 black[jupyter]~=24.10
 coverage[toml]~=7.8
-pip-audit~=2.7
+pip-audit~=2.9
 pycodestyle~=2.12
 pylint~=3.3
 pyright~=1.1