Update LibraryBuild.yml

Author: tobozo

.github/workflows/LibraryBuild.yml

@@ -29,4 +29,5 @@ jobs:
         arduino-board-fqbn:  esp32:esp32:m5stack-core2
         platform-url: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_dev_index.json
         sketch-names-find-start: examples/Basics/
+        extra-arduino-cli-args: "--warnings default "
         sketches-exclude: mpu6886