Bump vendor/emojis from f113dde to 223909f

Bumps [vendor/emojis](https://github.com/buildkite/emojis) from `f113dde` to `223909f`.
- [Commits](buildkite/emojis@f113dde...223909f)

---
updated-dependencies:
- dependency-name: vendor/emojis
  dependency-type: direct:production
...

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