Once https://github.com/elastic/elasticsearch/issues/98503 is done, we can use our minimum version numbers in the SystemIndexMappingUpdate service instead of the old `Version` types. Mappings will be updated for a system index when all nodes have a matching descriptor mappings version for a system index, but this version is greater than what's stored in the mappings metadata.
server/src/test/java/org/elasticsearch/cluster/ClusterStateTests.java
}
                                }
                              ]
                            }
                          }
                        }
                      },
                      "routing_nodes" : {
                        "unassigned" : [ ],
                        "nodes" : {
                          "nodeId2" : [
                            {
                              "state" : "STARTED",
                              "primary" : true,
                              "node" : "nodeId2",
                              "relocating_node" : null,
                              "shard" : 0,
                              "index" : "index",
                              "allocation_id" : {
                                "id" : "%s"
                              },
                              "relocation_failure_info" : {
                                "failed_attempts" : 0
                              }
                            }
                          ],
                          "nodeId1" : [ ]
                        }
                      }
                    }""",