Fix fake-cache return

Author: bouwew

tests/test_usb.py

@@ -2135,7 +2135,7 @@ def fake_cache(dummy: object, setting: str) -> str | bool | None:  # noqa: PLR09
             if setting == pw_scan.CACHE_SCAN_CONFIG_RESET_TIMER:
                 return "10"
             if setting == pw_scan.CACHE_SCAN_CONFIG_SENSITIVITY:
-                return "MEDIUM"
+                return 2
             if setting == pw_scan.CACHE_SCAN_CONFIG_DAYLIGHT_MODE:
                 return False
             if setting == pw_scan.CACHE_SCAN_CONFIG_DIRTY: