add android release builder container job

.gitea/workflows/android-continer-builds.yaml

@@ -0,0 +1,24 @@
+name: Build android container
+on: [push]
+
+jobs:
+  android-release-builder-container-build:
+    runs-on: ubuntu-latest 
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Log in to container registry
+        uses: docker/login-action@v3
+        with:
+          registry: git.ohea.xyz
+          username: ${{ secrets.CI_REGISTRY_USER }}
+          password: ${{ secrets.CI_REGISTRY_PASSWORD }}
+
+      - name: Build Android builder image
+        shell: bash
+        run: |
+          docker pull "$(grep -m1 '^FROM' ./docker/android-release-builder.Dockerfile | awk '{print $2}')"
+          docker build -t git.ohea.xyz/mumble/mumble-web2/android-release-builder:latest -f ./docker/android-release-builder.Dockerfile .
+          docker push git.ohea.xyz/mumble/mumble-web2/android-release-builder:latest