[CI] Oops, forgot the data folder in the AppImage

Author: ptitSeb

.github/workflows/release.yml

@@ -102,6 +102,7 @@ jobs:
           "$PWD/usr/bin/hcl" $@
           EOF
           chmod +x AppRun
+          cp -r ../../data .
           cd ../appimagetool
           ./appimagetool-*.AppImage ../AppDir ../hcl-${{ matrix.platform }}.AppImage