fix(ec): 7443 only required on loopback interface (#3132)

Author: emosbaugh

docs/partials/embedded-cluster/_port-reqs.mdx

@@ -5,6 +5,7 @@ This section lists the ports used by Embedded Cluster. These ports must be open
 The following ports must be open and available for use by local processes running on the same node. It is not necessary to create firewall openings for these ports.
 
 * 2379/TCP
+* 7443/TCP
 * 9099/TCP
 * 10248/TCP
 * 10257/TCP
@@ -21,7 +22,6 @@ For single-node installations, ensure that there are no other processes using th
 * 2380/TCP
 * 4789/UDP
 * 6443/TCP
-* 7443/TCP
 * 9091/TCP
 * 9443/TCP
 * 10249/TCP