Add file attribute to Junit testsuite report (#6425)

* feat: add file attribute to Junit testsuite report

* test: update tests to include file attribute

* fix: update playwright tests to support the new file attribute

---------

Co-authored-by: Thomas Vackier <thomas.vackier@inthepocket.com>
Co-authored-by: Bijin A B <bijin@usebruno.com>

packages/bruno-cli/src/reporters/junit.js

@@ -18,6 +18,7 @@ const makeJUnitOutput = async (results, outputPath) => {
 
     const suite = {
       '@name': result.name,
+      '@file': result.test.filename,
       '@errors': 0,
       '@failures': 0,
       '@skipped': 0,