Bump game-ci/unity-builder from 3 to 5

Bumps [game-ci/unity-builder](https://github.com/game-ci/unity-builder) from 3 to 5.
- [Release notes](https://github.com/game-ci/unity-builder/releases)
- [Commits](game-ci/unity-builder@v3...v5)

---
updated-dependencies:
- dependency-name: game-ci/unity-builder
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/unity-build.yml

@@ -25,7 +25,7 @@ jobs:
             Library-
 
       - name: Build project
-        uses: game-ci/unity-builder@v3
+        uses: game-ci/unity-builder@v5
         env:
           UNITY_LICENSE: ${{ secrets.UNITY_LICENSE }}
           UNITY_EMAIL: ${{ secrets.UNITY_EMAIL }}