⬆️ Bump libs/Catch2 from a6ee7e2 to 9c5a4cf (#222)

Bumps [libs/Catch2](https://github.com/catchorg/Catch2) from `a6ee7e2` to `9c5a4cf`.
- [Release notes](https://github.com/catchorg/Catch2/releases)
- [Commits](catchorg/Catch2@a6ee7e2...9c5a4cf)

---
updated-dependencies:
- dependency-name: libs/Catch2
  dependency-type: direct:production
...

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