ci: For Linux, only move AppImage to artifacts directory

Closes #795

.github/workflows/build.yml

@@ -49,9 +49,11 @@ jobs:
             ${{ runner.os }}-${{ matrix.target }}-
       - name: Build
         run: ./.ci/linux.sh
-      - name: Pack
+      - name: Move AppImage to artifacts directory
         if: ${{ matrix.target == 'appimage' }}
-        run: ./.ci/pack.sh
+        run: |
+          mkdir -p artifacts
+          mv build/bundle/*.AppImage artifacts/
       - name: Upload
         if: ${{ matrix.target == 'appimage' }}
         uses: actions/upload-artifact@v4