Add Matter Aqara W100 fixture (home-assistant#156305)

- Adds JSON fixture file containing Matter node data for the Aqara W100 sensor
- Updates test configuration to include the new fixture in parametrized tests
- Adds snapshot test data for sensor and button entities created by this device

Author: lboue

tests/components/matter/conftest.py

@@ -79,6 +79,7 @@ async def integration_fixture(
         "aqara_door_window_p2",
         "aqara_motion_p2",
         "aqara_presence_fp300",
+        "aqara_sensor_w100",
         "aqara_thermostat_w500",
         "aqara_u200",
         "battery_storage",