Bump game-ci/unity-builder from 2 to 3

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

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/main.yml

@@ -559,7 +559,7 @@ jobs:
           git reset --hard
       - name: Build Unity Project
         id: build
-        uses: game-ci/unity-builder@v2
+        uses: game-ci/unity-builder@v3
         env:
           UNITY_EMAIL: ${{ secrets.UNITY_EMAIL }}
           UNITY_PASSWORD: ${{ secrets.UNITY_PASSWORD }}