Fixed Arduino CI #11

	name: wifi_sync CI

	on:
	push:
	paths:
	- "examples/wifi_sync/**"
	- ".github/workflows/wifi_sync.yml"
	pull_request:
	paths:
	- "examples/wifi_sync/**"
	- ".github/workflows/wifi_sync.yml"

	jobs:
	wifi_sync:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Cache pip
	uses: actions/cache@v2
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
	restore-keys: \|
	${{ runner.os }}-pip-
	- name: Cache PlatformIO
	uses: actions/cache@v2
	with:
	path: ~/.platformio
	key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
	- name: Set up Python
	uses: actions/setup-python@v2
	- name: Install PlatformIO
	run: \|
	python -m pip install --upgrade pip
	pip install --upgrade platformio
	- name: Run PlatformIO
	run: \|
	cd examples/wifi_sync
	pio run

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