Add Ethernet lib to workflow

Author: nseidle

.github/workflows/compile-rtk-firmware.yml

@@ -76,6 +76,7 @@ jobs:
           "SparkFun LIS2DH12 Arduino Library"@1.0.3
           "ESP32-OTA-Pull"@1.0.0
           SparkFun_WebServer_ESP32_W5500@1.5.5
+          Ethernet@2.0.2
 
       - name: Enable external libs
         run: arduino-cli config set library.enable_unsafe_install true