Pastors

Results 3 issues of Pastors

Fix a Dockerfile bug

Delete user did not delete the user files in the CCD directory The following error occurred when creating a new user using the IP used by a deleted user ![图片](https://github.com/flant/ovpn-admin/assets/71577061/8d32b3c8-e4b0-4d2e-b17c-7342b544bcd6)

bug