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.

napalm_opnsense/ospf_mixin.py

@@ -33,7 +33,9 @@ class OPNsenseOspfMixin(OspfMixin):
     def get_ospf(self) -> dict[str, Any]:
         """Router ID, areas and OSPF per interface; empty when OSPF does not run."""
         overview = self._get(f"{_DIAG}/ospfoverview").get("response") or {}  # type: ignore[attr-defined]
-        interfaces = (self._get(f"{_DIAG}/ospfinterface").get("response") or {}).get("interfaces") or {}  # type: ignore[attr-defined]
+        interfaces = (self._get(f"{_DIAG}/ospfinterface").get("response") or {}).get(
+            "interfaces"
+        ) or {}  # type: ignore[attr-defined]
         return {
             "router_id": overview.get("routerId") or None,
             "areas": list((overview.get("areas") or {}).keys()),