Bumped action versions

Author: bitsandfoxes

.github/workflows/build.yml

@@ -30,7 +30,7 @@ jobs:
           lfs: true
 
       - name: Cache Unity Library
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: Library
           key: Library-${{ matrix.targetPlatform }}-${{ hashFiles('Assets/**', 'Packages/**', 'ProjectSettings/**') }}
@@ -49,7 +49,7 @@ jobs:
           allowDirtyBuild: true
 
       - name: Upload Build Artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: always()
         with:
           name: Build-${{ matrix.targetPlatform }}