Remove redundant PHPUnit step from CI

Author: Rafikooo

.github/workflows/build.yml

@@ -52,10 +52,6 @@ jobs:
                     composer analyse
                     (cd src/Component && composer validate --strict)
 
-            -
-                name: Run PHPUnit tests
-                run: vendor/bin/phpunit
-
             -
                 name: Test bundle (with all services)
                 run: |