lint: fix issues

cmdeploy/src/cmdeploy/__init__.py

@@ -257,7 +257,9 @@ def _configure_postfix(config: Config, debug: bool = False) -> bool:
     need_restart |= master_config.changed
 
     header_cleanup = files.put(
-        src=importlib.resources.files(__package__).joinpath("postfix/submission_header_cleanup"),
+        src=importlib.resources.files(__package__).joinpath(
+            "postfix/submission_header_cleanup"
+        ),
         dest="/etc/postfix/submission_header_cleanup",
         user="root",
         group="root",

cmdeploy/src/cmdeploy/dns.py

@@ -4,7 +4,6 @@ import requests
 import importlib
 import subprocess
 import datetime
-from ipaddress import ip_address
 
 
 class DNS: