chore(deps): update actions/upload-artifact action to v4

| datasource  | package                 | from | to |
| ----------- | ----------------------- | ---- | -- |
| github-tags | actions/upload-artifact | v3   | v4 |

Author: renovate[bot]

.github/workflows/build.yml

@@ -44,7 +44,7 @@ jobs:
         run: ./gradlew assembleDebug --warning-mode all --stacktrace
 
       - name: Upload APK
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: app-debug
           path: app/build/outputs/apk/debug/app-debug.apk