[ATR-25521] Order map by element links to make map iteration reproducible

To fix irreproducible ordering of graph nodes.

Marking as draft due to being unable to change against yesterday's nightly (too much has been merged which touches templated code). Will try tomorrow.

Trigger/TrigAnalysis/TrigNavSlimmingMT/src/TrigNavSlimmingMTAlg.cxx

@@ -162,7 +162,8 @@ StatusCode TrigNavSlimmingMTAlg::execute(const EventContext& ctx) const {
     transientNavGraph, 
     fullyExploredFrom, 
     chainIDs, 
-    /*enforce chainIDs on terminus node*/ true);
+    /*enforce chainIDs on terminus node*/ true,
+    ctx);
 
   ATH_MSG_DEBUG("Collated nodes from passing paths, now have " << transientNavGraph.nodes() << " nodes with " << transientNavGraph.edges() << "edges");
 
@@ -184,7 +185,8 @@ StatusCode TrigNavSlimmingMTAlg::execute(const EventContext& ctx) const {
         transientNavGraph, 
         fullyExploredFrom, 
         chainIDs, 
-        /*enforce chainIDs on terminus node*/ false);
+        /*enforce chainIDs on terminus node*/ false,
+        ctx);
     }
     ATH_MSG_DEBUG("Collated nodes from failing paths, now have " << transientNavGraph.nodes() << " nodes with " << transientNavGraph.edges() << "edges");
   }