Fix CI building for esp-now bridge

Author: wqx6

examples/esp-now_bridge_light/main/idf_component.yml

@@ -1,6 +1,8 @@
 ## IDF Component Manager Manifest File
 dependencies:
-  espressif/esp-now: ">=2.2.0"
+  # esp-now 2.5.0 will use 'dcm' member in esp_now_rate_config_t, and that member is introduced after IDF v5.1.2.
+  # TODO: update esp-now component to the latest version when updating ESP-IDF
+  espressif/esp-now: "2.4.0"
   ## Required IDF version
   idf:
     version: ">=4.1.0"