Daemon: Fix for the kodi_scan script.

The Docker network changes to 172.20.0.0/16 (see the debian_server
Ansible role in the homelab repo).

daemon/kodi_scan

@@ -15,7 +15,7 @@ import urllib.request
 
 def scan(library=None):
     """Trigger a Kodi library scan, either just audio, video or both."""
-    kodi_json_rpc_url = "http://172.18.0.1:8080/jsonrpc"
+    kodi_json_rpc_url = "http://172.20.0.1:8080/jsonrpc"
     headers = {"content-type": "application/json"}
     base_request_data = {"jsonrpc": "2.0", "id": "transmission"}
     audio_request_data = {**base_request_data, "method": "AudioLibrary.Scan"}