Add client commands for updates

Add two new client commands to check for updates and trigger the
update.

Author: agners

matter_server/client/client.py

@@ -509,6 +509,26 @@ async def interview_node(self, node_id: int) -> None:
         """Interview a node."""
         await self.send_command(APICommand.INTERVIEW_NODE, node_id=node_id)
 
+    async def check_node_update(self, node_id: int) -> dict[str, Any]:
+        """Check Node for updates.
+
+        Return a dict with the available update information. Most notable
+        "softwareVersion" contains the integer value of the update version which then
+        can be used for the update_node command to trigger the update.
+
+        The "softwareVersionString" is a human friendly version string.
+        """
+        node_update = await self.send_command(
+            APICommand.CHECK_NODE_UPDATE, node_id=node_id
+        )
+        return cast(dict[str, Any], node_update)
+
+    async def update_node(self, node_id: int, software_version: int) -> None:
+        """Start node update to a particular version."""
+        await self.send_command(
+            APICommand.UPDATE_NODE, node_id=node_id, software_version=software_version
+        )
+
     def _prepare_message(
         self,
         command: str,