Bump external/usersim from 651d2f9 to 5725ff5 (#93)

Bumps [external/usersim](https://github.com/microsoft/usersim) from `651d2f9` to `5725ff5`.
- [Commits](microsoft/usersim@651d2f9...5725ff5)

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

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