fix typo

.github/workflows/test-unit.yml

@@ -60,7 +60,7 @@ jobs:
       - name: Check Coding Style (only for CodingStyle)
         if: matrix.type == 'CodingStyle'
         run: |
-          if [ "$(find demos/ -name '*.php' -print0 | xargs -0 grep -L "namespace Atk4\\\\Ui\\\\Demos[;\\\\]" | tee /dev/fd/2)" ]; then echo 'All demos/ files must have namespace declared' && (exit 1); fi
+          if [ "$(find demos/ -name '*.php' -print0 | xargs -0 grep -L "namespace Atk4\\\\Community\\\\Demos[;\\\\]" | tee /dev/fd/2)" ]; then echo 'All demos/ files must have namespace declared' && (exit 1); fi
           vendor/bin/php-cs-fixer fix --dry-run --using-cache=no --diff --verbose
           composer config --unset version && composer config --unset require-release
           composer validate --strict --no-check-lock && composer normalize --dry-run --no-check-lock