Fix mutation workflow

Author: vjik

.github/workflows/mutation.yml

@@ -49,8 +49,6 @@ jobs:
         run: composer update --prefer-dist --no-interaction --no-progress --optimize-autoloader --ansi
 
       - name: Run infection
-        run: |
-          git fetch --depth=1 origin $GITHUB_BASE_REF
-          vendor/bin/roave-infection-static-analysis-plugin -j2 --git-diff-filter=A --git-diff-base=origin/$GITHUB_BASE_REF --logger-github --ignore-msi-with-no-mutations --only-covered
+        run: vendor/bin/infection --no-progress
         env:
           STRYKER_DASHBOARD_API_KEY: ${{ secrets.STRYKER_DASHBOARD_API_KEY }}