Update main.yml #267

	name: Platform IO CI
	on: [push]
	jobs:
	build:
	name: Build
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	submodules: 'true'
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.9"
	- name: Install PlatformIO
	run: python -m pip install platformio
	- name: Check boards
	run: pio boards espressif32
	- name: Build firmware
	run: pio ci --lib=src --lib=include --exclude=assets --exclude=example --exclude=boards --project-conf="example/platformio.ini" "example/main.cpp"
	env:
	PLATFORMIO_BUILD_FLAGS: -DLV_CONF_PATH="${{github.workspace}}/example/lv_conf.h"

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