Adjust pylint for IMPERIAL_SYSTEM deprecation (#80874)

* Adjust pylint for IMPERIAL_SYSTEM deprecation

* Use correct location

* Adjust components

pylint/plugins/hass_imports.py

@@ -296,6 +296,12 @@ _OBSOLETE_IMPORT: dict[str, list[ObsoleteImportMatch]] = {
             constant=re.compile(r"^(distance|pressure|speed|temperature|volume)$"),
         ),
     ],
+    "homeassistant.util.unit_system": [
+        ObsoleteImportMatch(
+            reason="replaced by US_CUSTOMARY_SYSTEM",
+            constant=re.compile(r"^IMPERIAL_SYSTEM$"),
+        ),
+    ],
 }