tm: cleanup parsed body at the end t_continue_helper

- if t_suspend and t_continue are used for replies
  and in the called route in t_continue the body of
  the sip message is parsed the pkg memory of the
  parsed body is leaked

src/modules/tm/t_suspend.c

@@ -554,6 +554,11 @@ static int t_continue_helper(unsigned int hash_index, unsigned int label,
 					hdr = hdr->next;
 				}
 			}
+
+			/* trigger free of body */
+			if(brpl->body && brpl->body->free) {
+				brpl->body->free(&brpl->body);
+			}
 			sip_msg_free(brpl);
 		}
 	}