Merge pull request 'fix(ci): retombe sur upload-artifact v3 (v4+ non supporté par ce Forgejo)' (#71) from fix/upload-artifact-ghes-compat into main

.github/workflows/ci.yml

@@ -283,7 +283,10 @@ jobs:
           chmod +x ./gradlew
           ./gradlew assembleRelease
 
-      - uses: https://github.com/actions/upload-artifact@v4
+      # v4+ exige l'API "Results" de GitHub, que ce runner Forgejo self-hosted
+      # ne supporte pas ("GHESNotSupportedError") — v3 utilise encore
+      # l'ancienne API Artifacts (compatible), seule version utilisable ici.
+      - uses: https://github.com/actions/upload-artifact@v3
         with:
           name: batchcooking-release.apk
           path: apps/web/android/app/build/outputs/apk/release/app-release.apk