chore(deps): bump game-ci/unity-test-runner in /.github/workflows (#408)

Bumps [game-ci/unity-test-runner](https://github.com/game-ci/unity-test-runner) from 2 to 3.
- [Release notes](https://github.com/game-ci/unity-test-runner/releases)
- [Commits](https://github.com/game-ci/unity-test-runner/compare/v2...v3)

---
updated-dependencies:
- dependency-name: game-ci/unity-test-runner
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/gameci.yml

@@ -54,7 +54,7 @@ jobs:
           ref: ${{ github.event.pull_request.head.sha }}
       - uses: anatawa12/sh-actions/resolve-vpm-packages@master
 
-      - uses: game-ci/unity-test-runner@v2
+      - uses: game-ci/unity-test-runner@v3
         id: gameci
         env:
           # meh, just a personal license...