Log Message:
py-pip_audit: update to 2.5.1.

## [2.5.1]

### Fixed

* Fixed a crash on Windows caused by multiple open file handles to
  input requirements ([#551](https://github.com/pypa/pip-audit/pull/551))

## [2.5.0]

### Changed

* Improved error messaging when a requirements input or indirect dependency
  has an invalid (non-PEP 440) requirements specifier
  ([#507](https://github.com/pypa/pip-audit/pull/507))

* `pip-audit`'s handling of dependency resolution has been significantly
  refactored and simplified ([#523](https://github.com/pypa/pip-audit/pull/523))

### Fixed

* Fixed a potential crash on invalid unicode in subprocess streams
  ([#536](https://github.com/pypa/pip-audit/pull/536))

## [2.4.15]

**YANKED**

### Fixed

* Fixed an issue where hash checking would fail when using third-party indices
  ([#462](https://github.com/pypa/pip-audit/pull/462))

* Fixed the behavior of the `--skip-editable` flag, which had regressed
  with an internal API change
  ([#499](https://github.com/pypa/pip-audit/pull/499))

* Fixed a dependency resolution bug that can potentially be triggered when
  multiple packages have the same subdependency
  ([#488](https://github.com/pypa/pip-audit/pull/488))