Bump trycmd from 0.14.12 to 0.14.13 in /cmd/pinniped-proxy

Bumps [trycmd](https://github.com/assert-rs/trycmd) from 0.14.12 to 0.14.13.
- [Release notes](https://github.com/assert-rs/trycmd/releases)
- [Changelog](https://github.com/assert-rs/trycmd/blob/main/CHANGELOG.md)
- [Commits](assert-rs/snapbox@v0.14.12...v0.14.13)

---
updated-dependencies:
- dependency-name: trycmd
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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