Merge branch 'fc-optional-needs-fix-part-2' into 'master'

Prevent error when accessing optional needs in pipeline graph

See merge request gitlab-org/gitlab!62948

app/assets/javascripts/pipelines/components/parsing_utils.js

@@ -80,7 +80,7 @@ export const makeLinksFromNodes = (nodes, nodeDict) => {
 export const getAllAncestors = (nodes, nodeDict) => {
   const needs = nodes
     .map((node) => {
-      return nodeDict[node].needs || '';
+      return nodeDict[node]?.needs || '';
     })
     .flat()
     .filter(Boolean);