Add Gitea Actions workflow (from GitHub)

.gitea/workflows/build.yml

@@ -0,0 +1,34 @@
+---
+name: Build package
+
+on:
+  push:
+    branches: ['*']
+  pull_request:
+    branches: ['*']
+
+  workflow_dispatch:
+
+jobs:
+  test-and-build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: https://github.com/actions/checkout@v3
+
+      - name: ShellCheck
+        uses: ludeeus/action-shellcheck@2.0.0
+        env:
+          SHELLCHECK_OPTS: -e SC1091
+
+      - name: Build Debian package
+        uses: jtdor/build-deb-action@v1
+        with:
+          buildpackage-opts: --no-sign --check-command=lintian
+          extra-build-deps: lintian
+
+      - name: Upload debian package as artifact
+        uses: https://github.com/actions/upload-artifact@v3
+        with:
+          name: deb
+          path: debian/artifacts