Bump elm-tooling from 1.15.0 to 1.15.1 in the dependabot group (#16)

Bumps the dependabot group with 1 update: [elm-tooling](https://github.com/elm-tooling/elm-tooling-cli).


Updates `elm-tooling` from 1.15.0 to 1.15.1
- [Changelog](https://github.com/elm-tooling/elm-tooling-cli/blob/main/CHANGELOG.md)
- [Commits](elm-tooling/elm-tooling-cli@v1.15.0...v1.15.1)

---
updated-dependencies:
- dependency-name: elm-tooling
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dependabot
...

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