chore(actions): appimage build action

.github/workflows/appimage.yaml

@@ -0,0 +1,29 @@
+name: Build Lune AppImage
+
+on:
+  schedule:
+    - cron:  '0 0 * * *'
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Build the AppImage 
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+        with:
+          submodules: true
+
+      - name: Install dependencies
+        run: sudo apt install imagemagick file desktop-file-utils curl wget dpkg-dev unzip fuse libfuse2
+
+      - name: Set working directory
+        run: cd packages/appimage && export LUNE_VERSION=0.7.5
+
+      - name: Build AppImage
+        run: ./pkg2appimage/pkg2appimage lune.yml && mv ./lune/lune-$(uname -m).AppImage ./lune-$LUNE_VERSION-$(uname -m).AppImage
+
+
+