first mod

.gitea/workflows/build-android.yaml

@@ -5,6 +5,10 @@ jobs:
     name: Build APK
     runs-on: k8s
     steps:
+    - name: Install prerequisites
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y xz-utils
     - uses: https://github.com/actions/checkout@v1
     - uses: https://github.com/actions/setup-java@v1
       with: