ci/linux: provide AppImage package for aarch64

.github/workflows/ci.yml

@@ -176,8 +176,16 @@ jobs:
           path: Twitch.Drops.Miner.Linux.PyInstaller.zip
 
   linux-appimage:
-    name: Linux (AppImage)
-    runs-on: ubuntu-22.04
+    name: Linux (AppImage) (${{matrix.arch}})
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - arch: x86_64
+            runner: ubuntu-22.04
+          - arch: aarch64
+            runner: ubuntu-22.04-arm
+    runs-on: ${{matrix.runner}}
     needs:
       - validate
 
@@ -207,7 +215,8 @@ jobs:
 
       - name: Create AppImage
         env:
-          ARCH: x86_64
+          ARCH: ${{matrix.arch}}
+          ARCH_APT: ${{matrix.arch == 'x86_64' && 'amd64' || 'arm64'}}
           APP_VERSION: ${{steps.vars.outputs.app_version}}.${{steps.vars.outputs.sha_short}}
           PYTHON_VERSION: ${{env.PYTHON_VERSION}}
         run: |
@@ -218,14 +227,14 @@ jobs:
           folder='Twitch Drops Miner'
           mkdir "${folder}"
           cp *.AppImage manual.txt "${folder}"
-          7z a Twitch.Drops.Miner.Linux.AppImage.zip "${folder}"
+          7z a 'Twitch.Drops.Miner.Linux.AppImage-${{matrix.arch}}.zip' "${folder}"
 
       - name: Upload build artifact
         uses: actions/upload-artifact@v4
         with:
           if-no-files-found: error
-          name: Twitch.Drops.Miner.Linux.AppImage
-          path: Twitch.Drops.Miner.Linux.AppImage.zip
+          name: Twitch.Drops.Miner.Linux.AppImage-${{matrix.arch}}
+          path: Twitch.Drops.Miner.Linux.AppImage-${{matrix.arch}}.zip
 
   update_releases_page:
     name: Upload builds to Releases