chore(deps): update ghcr.io/paperless-ngx/paperless-ngx docker tag to v2.20.9

Author: renovate[bot]

modules/paperless/default.nix

@@ -154,7 +154,7 @@ in {
 
     services.podman.containers = {
       ${name} = {
-        image = "ghcr.io/paperless-ngx/paperless-ngx:2.20.8";
+        image = "ghcr.io/paperless-ngx/paperless-ngx:2.20.9";
         dependsOnContainer = [
           dbName
           brokerName