fix(github): fix workflows

Author: majoskorec

.github/workflows/grumphp.yaml

@@ -23,7 +23,7 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Setup .env file
-        run: echo "php-container=generics-php$(echo "${{ matrix.php-version }}" | tr -d '.')" >> $GITHUB_ENV
+        run: echo "php-container=generics-php${{ matrix.php-version }}" >> $GITHUB_ENV
 
       - name: Start containers
         run: docker compose -f "compose.yaml" up -d ${{ env.php-container }}