AXIS2-5762 Register new transport port fields in MessageContextChangeTest

MessageContextChangeTest maintains a known field list to detect
unassessed changes to MessageContext. Add TRANSPORT_LOCAL_PORT and
TRANSPORT_REMOTE_PORT to the known list (expected count 76 → 78).

These are static final String constants that do not participate in
MessageContext serialization — no save/restore impact.

Author: robertlazarski

modules/kernel/test/org/apache/axis2/engine/MessageContextChangeTest.java

@@ -53,6 +53,8 @@ public class MessageContextChangeTest extends TestCase {
             new FieldDescription("java.lang.String", "UTF_8"),
             new FieldDescription("java.lang.String", "UTF_16"),
             new FieldDescription("java.lang.String", "TRANSPORT_SUCCEED"),
+            new FieldDescription("java.lang.String", "TRANSPORT_LOCAL_PORT"),
+            new FieldDescription("java.lang.String", "TRANSPORT_REMOTE_PORT"),
             new FieldDescription("java.lang.String", "DEFAULT_CHAR_SET_ENCODING"),
             new FieldDescription("int", "FLOW"),
             new FieldDescription("java.lang.String", "CLIENT_API_NON_BLOCKING"),