Update subosito/flutter-action action to v2.18.0#1376

daohoangson merged 2 commits intomasterdaohoangson/flutter_widget_from_html:masterfrom

renovate/subosito-flutter-action-2.xdaohoangson/flutter_widget_from_html:renovate/subosito-flutter-action-2.xCopy head branch name to clipboard