Add missing get for totalOutboundConnections (#88234)

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Author: mindw

server/src/main/java/org/elasticsearch/transport/TransportStats.java

@@ -103,6 +103,14 @@ public long getServerOpen() {
         return serverOpen();
     }
 
+    public long totalOutboundConnections() {
+        return this.totalOutboundConnections;
+    }
+
+    public long getTotalOutboundConnections() {
+        return totalOutboundConnections();
+    }
+
     public long rxCount() {
         return rxCount;
     }