ci: add Gitea Actions CI, tag releases and AUR PKGBUILDs

.gitea/workflows/ci.yml

@@ -0,0 +1,26 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container: archlinux:latest
+    steps:
+      - name: Install dependencies
+        run: |
+          pacman -Syu --noconfirm --needed git nodejs base-devel cmake ninja extra-cmake-modules \
+              qt6-base qt6-declarative kirigami ki18n kcoreaddons kcrash kconfig \
+              mpvqt qcoro qtkeychain-qt6 ffmpeg
+      - uses: actions/checkout@v4
+      - name: Configure
+        run: cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug -DBUILD_TESTING=ON
+      - name: Build
+        run: cmake --build build
+      - name: Test
+        env:
+          QT_QPA_PLATFORM: offscreen
+        run: ctest --test-dir build --output-on-failure