[CI] Added ESP32 back to build matrix

.github/workflows/main.yml

@@ -24,6 +24,7 @@ on:
           - arduino:samd:arduino_zero_native
           - adafruit:samd:adafruit_feather_m0
           - adafruit:nrf52:feather52832
+          - esp32:esp32:esp32
           - esp8266:esp8266:generic
           - Intel:arc32:arduino_101
           - SparkFun:apollo3:sfe_artemis
@@ -75,6 +76,10 @@ jobs:
               echo "options=':softdevice=s132v6,debug=l0'" >> $GITHUB_OUTPUT
               echo "index-url=--additional-urls https://adafruit.github.io/arduino-board-index/package_adafruit_index.json" >> $GITHUB_OUTPUT
               echo "skip-pattern=(STM32WL|LR11x0_Firmware_Update)" >> $GITHUB_OUTPUT
+          - id: esp32:esp32:esp32
+            run: |
+              python -m pip install pyserial
+              echo "index-url=--additional-urls https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json" >> $GITHUB_OUTPUT
           - id: esp8266:esp8266:generic
             run: |
               echo "options=':xtal=80,ResetMethod=ck,CrystalFreq=26,FlashFreq=40,FlashMode=qio,eesz=512K'" >> $GITHUB_OUTPUT