style: ruff format and the lint rules of the driver standard

Mechanical: ruff format, and ruff check --fix with the rule set every NAPALM
driver uses (E, F, I, UP, B at line length 100, Python 3.10). What ruff
cannot fix comes in the next commit.

tests/unit/test_ping.py

@@ -6,11 +6,11 @@ has to be stopped and removed again. These tests drive that whole lifecycle
 against a fake ``_get`` / ``_post``.
 """
 
-import pytest
 from unittest.mock import MagicMock, patch
 
-from napalm_opnsense.opnsense import OPNsenseDriver
+import pytest
 
+from napalm_opnsense.opnsense import OPNsenseDriver
 
 # ---------------------------------------------------------------------------
 # Fake API
@@ -28,11 +28,11 @@ class FakePingAPI:
         #: to assume one, which is why nothing caught the payload going to the
         #: wrong node.
         self.model_path = tuple(model_path)
-        self.created = []      # payloads passed to set
-        self.started = []      # job ids passed to start
-        self.stopped = []      # job ids passed to stop
-        self.removed = []      # job ids passed to remove
-        self.jobs = {}         # job id -> hostname
+        self.created = []  # payloads passed to set
+        self.started = []  # job ids passed to start
+        self.stopped = []  # job ids passed to stop
+        self.removed = []  # job ids passed to remove
+        self.jobs = {}  # job id -> hostname
         self.search_calls = 0
         self._next_id = 0