fix: what bandit and the remaining lint rules found

- open() raises ConnectionException from the SoCo error (B904), so the
  cause stays attached.
- _check_wired_connection: the except Exception: pass (B110) now logs at
  debug level, so a swallowed failure leaves a trace. A module logger is
  new.
- nosec for the empty password default (B107): a Sonos speaker takes no
  login, the argument exists for NAPALM's constructor signature.
- tests: raise AssertionError instead of assert False (B011).

tests/test_sonos.py

@@ -52,7 +52,7 @@ class TestSonosDriver:
             mock_soco.side_effect = Exception("Connection refused")
             try:
                 driver.open()
-                assert False, "Expected ConnectionException"
+                raise AssertionError("Expected ConnectionException")
             except ConnectionException:
                 pass