add matter example to CI

Author: Jason2866

.github/workflows/examples.yml

@@ -19,6 +19,7 @@ jobs:
           - "examples/arduino-usb-keyboard"
           - "examples/arduino-wifiscan"
           - "examples/espidf-arduino-h2zero-BLE_scan"
+          - "examples/espidf-arduino-matter-light"
           - "examples/espidf-arduino-blink"
           - "examples/espidf-arduino-littlefs"
           - "examples/espidf-blink"