feat: rename release APK to Paarrot.apk, add obtainium.json

.gitea/workflows/build.yml

@@ -151,7 +151,11 @@ jobs:
       - name: Prepare release files
         run: |
           mkdir -p release-files
-          find artifacts -type f \( -name "*.exe" -o -name "*.AppImage" -o -name "*.nupkg" -o -name "*.apk" -o -name "RELEASES*" \) -exec cp {} release-files/ \;
+          find artifacts -type f \( -name "*.exe" -o -name "*.AppImage" -o -name "*.nupkg" -o -name "RELEASES*" \) -exec cp {} release-files/ \;
+          APK=$(find artifacts -type f -name "*.apk" | head -1)
+          if [ -n "$APK" ]; then
+            cp "$APK" "release-files/Paarrot.apk"
+          fi
           ls -la release-files/
 
       - name: Create or Update Release