Change perms on logrotated logs to npm user

docker/rootfs/etc/logrotate.d/nginx-proxy-manager

@@ -1,5 +1,5 @@
 /data/logs/*_access.log /data/logs/*/access.log {
-    create 0644 root root
+    create 0644 npm npm
     weekly
     rotate 4
     missingok
@@ -12,7 +12,7 @@
 }
 
 /data/logs/*_error.log /data/logs/*/error.log {
-    create 0644 root root
+    create 0644 npm npm
     weekly
     rotate 10
     missingok