dependency: bump pip-audit from 2.6.2 to 2.6.3

Bumps [pip-audit](https://github.com/pypa/pip-audit) from 2.6.2 to 2.6.3.
- [Release notes](https://github.com/pypa/pip-audit/releases)
- [Changelog](https://github.com/pypa/pip-audit/blob/main/CHANGELOG.md)
- [Commits](pypa/pip-audit@v2.6.2...v2.6.3)

---
updated-dependencies:
- dependency-name: pip-audit
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>