fix binary name

Author: AydinHassan

.github/workflows/php-workshop.yml

@@ -31,7 +31,7 @@ jobs:
       - name: Run phpunit tests
         run: |
           mkdir -p build/logs
-          vendor/bin/phpunit-simple --coverage-clover ./build/logs/clover.xml
+          vendor/bin/simple-phpunit --coverage-clover ./build/logs/clover.xml
 
       - name: Run phpcs
         run: composer cs