Fix create mr from modal regression

* Update endpoint path variable.
* Was undefined and would cause exception

Add changelog

ee/app/assets/javascripts/security_dashboard/store/modules/vulnerabilities/actions.js

@@ -221,13 +221,13 @@ export const createMergeRequest = ({ dispatch }, { vulnerability, flashError })
   const {
     report_type,
     project_fingerprint,
-    vulnerability_feedback_merge_request_path,
+    create_vulnerability_feedback_merge_request_path,
   } = vulnerability;
 
   dispatch('requestCreateMergeRequest');
 
   axios
-    .post(vulnerability_feedback_merge_request_path, {
+    .post(create_vulnerability_feedback_merge_request_path, {
       vulnerability_feedback: {
         feedback_type: 'merge_request',
         category: report_type,

ee/changelogs/unreleased/fix-broken-create-mr-from-vuln-modal.yml

+---
+title: Fix create mr from vuln modal regression
+merge_request: 13524
+author:
+type: fixed