Fix missing key warning

Author: timja

src/main/frontend/pipeline-graph-view/pipeline-graph/main/support/nodes.tsx

@@ -44,6 +44,7 @@ export function Node({ node }: NodeProps) {
 
   groupChildren.push(
     <StatusIcon
+      key={`icon-${node.id}`}
       status={node.stage.state}
       percentage={node.stage.completePercent}
       skeleton={node.stage.skeleton}