Update ghcr.io/9001/copyparty-ac Docker tag to v1.20.18 (#765)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

clusters/hybrid01/config/navidrome/filebrowser.yaml

@@ -20,7 +20,7 @@ spec:
     spec:
       containers:
         - name: copyparty
-          image: ghcr.io/9001/copyparty-ac:1.20.17 
+          image: ghcr.io/9001/copyparty-ac:1.20.18 
           env:
             - name: PRTY_NO_TLS
               value: "1"