fix(ci): upgrade to upload-artifact v4

Author: ChachyDev

.github/workflows/build.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Build with Gradle
         run: ./gradlew build
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: lazy-language-loader-artifacts
           path: build/libs/