Fix wrong label formatting (#9830)

Fixes
https://discord.com/channels/1130383047699738754/1324785862830985266
## Before
<img width="451" alt="image"
src="https://github.com/user-attachments/assets/53ae96f9-4bbd-40e3-beaa-a5702f2adee4"
/>

## After
<img width="388" alt="image"
src="https://github.com/user-attachments/assets/e36da162-bc60-4596-823b-ffb6ddfed98d"
/>

packages/twenty-front/src/modules/workflow/workflow-variables/components/WorkflowVariablesDropdownFieldItems.tsx

@@ -115,7 +115,20 @@ export const WorkflowVariablesDropdownFieldItems = ({
     }
   };
 
-  const headerLabel = currentPath.length === 0 ? step.name : currentPath.at(-1);
+  const getHeaderLabel = () => {
+    if (currentPath.length === 0) {
+      return step.name;
+    }
+
+    const subStepName = currentPath.at(-1);
+
+    if (isDefined(subStepName) && isRecordOutputSchema(step.outputSchema)) {
+      return step.outputSchema.fields[subStepName].label;
+    }
+
+    return subStepName;
+  };
+
   const displayedObject = getDisplayedSubStepFields();
   const options = displayedObject ? Object.entries(displayedObject) : [];
 
@@ -134,7 +147,7 @@ export const WorkflowVariablesDropdownFieldItems = ({
         onClick={goBack}
         style={{ position: 'fixed' }}
       >
-        <OverflowingTextWithTooltip text={headerLabel} />
+        <OverflowingTextWithTooltip text={getHeaderLabel()} />
       </DropdownMenuHeader>
       <DropdownMenuSearchInput
         autoFocus