Removed curly brackets in echo

Author: ezimuel

.github/workflows/test.yml

@@ -26,7 +26,7 @@ jobs:
 
     - name: Get composer cache directory
       id: composercache
-      run: echo "{dir}={$(composer config cache-files-dir)}" >> $GITHUB_OUTPUT
+      run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
 
     - name: Cache dependencies
       uses: actions/cache@v4