Bump the actions group across 1 directory with 2 updates (#172)

Bumps the actions group with 2 updates in the / directory: [external/Catch2](https://github.com/catchorg/Catch2) and [external/usersim](https://github.com/microsoft/usersim).


Updates `external/Catch2` from `119a7bb` to `0321d2f`
- [Release notes](https://github.com/catchorg/Catch2/releases)
- [Commits](catchorg/Catch2@119a7bb...0321d2f)

Updates `external/usersim` from `30fc371` to `95b2f20`
- [Commits](microsoft/usersim@30fc371...95b2f20)

---
updated-dependencies:
- dependency-name: external/Catch2
  dependency-type: direct:production
  dependency-group: actions
- dependency-name: external/usersim
  dependency-type: direct:production
  dependency-group: actions
...

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