add ESP32/8266 boards to Arduino CI

fix typo

.github/workflows/build_arduino.yml

@@ -98,6 +98,9 @@ jobs:
           - "arduino:megaavr:uno2018"
           # - "arduino:megaavr:nano4809"  # board not found
           - "arduino:sam:arduino_due_x_dbg"
+          - "esp8266com:esp8266:nodemcuv2"
+          - "espressif:esp32:adafruit_qtpy_esp32s2"
+
         # By default, don't generate size deltas data.
         enable-deltas-report: 
           - false
@@ -147,6 +150,10 @@ jobs:
             - name: arduino:sam
             - name: arduino:samd
             - name: arduino:mbed
+            - name: esp8266com:esp8266
+              source-url: https://arduino.esp8266.com/stable/package_esp8266com_index.json
+            - name: espressif:esp32
+              source-url: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
       
       # This step is needed to pass the size data to the report job 
       - name: Upload sketches report to workflow artifact