MM-53228: Adding schema version to cluster info (#24209)

With the schema version available, a job can query for
the cluster info to confirm whether or not all nodes
in a cluster are upgraded to the same version or not.

This will help it in determining whether to start
the job or not.

https://mattermost.atlassian.net/browse/MM-53228

```release-note
NONE
```

webapp/channels/src/components/admin_console/cluster_table.tsx

@@ -15,6 +15,7 @@ type Props = {
         config_hash: string;
         hostname: string;
         ipaddress: string;
+        schema_version: string;
     }>;
     reload: (e: MouseEvent<HTMLButtonElement>) => void;
 }
@@ -130,6 +131,7 @@ export default class ClusterTable extends PureComponent<Props> {
                     <td style={style.clusterCell}>{versionMismatch} {clusterInfo.version}</td>
                     <td style={style.clusterCell}><div className='config-hash'>{configMismatch} {clusterInfo.config_hash}</div></td>
                     <td style={style.clusterCell}>{clusterInfo.ipaddress}</td>
+                    <td style={style.clusterCell}>{clusterInfo.schema_version}</td>
                 </tr>
             );
         });
@@ -185,6 +187,12 @@ export default class ClusterTable extends PureComponent<Props> {
                                     defaultMessage='Gossip Address'
                                 />
                             </th>
+                            <th>
+                                <FormattedMessage
+                                    id='admin.cluster.status_table.schema_version'
+                                    defaultMessage='DB Schema Version'
+                                />
+                            </th>
                         </tr>
                     </thead>
                     <tbody>

webapp/channels/src/i18n/en.json

@@ -550,6 +550,7 @@
   "admin.cluster.status_table.config_hash": "Config File MD5",
   "admin.cluster.status_table.hostname": "Hostname",
   "admin.cluster.status_table.reload": " Reload Cluster Status",
+  "admin.cluster.status_table.schema_version": "DB Schema Version",
   "admin.cluster.status_table.status": "Status",
   "admin.cluster.status_table.url": "Gossip Address",
   "admin.cluster.status_table.version": "Version",

webapp/platform/types/src/admin.ts

@@ -70,6 +70,7 @@ export type ClusterInfo = {
     config_hash: string;
     ipaddress: string;
     hostname: string;
+    schema_version: string;
 };
 
 export type AnalyticsRow = {