added ci #3

	name: Build OpenThread nRF52840 Example

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	jobs:
	build:
	name: Build OpenThread nRF52840
	runs-on: ubuntu-latest

	steps:
	# Step 1: Checkout the code
	- name: Checkout repository
	uses: actions/checkout@v3
	with:
	submodules: recursive

	# Step 2: Set up dependencies
	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install -y \
	gcc-arm-none-eabi \
	make \
	cmake \
	git \
	libstdc++-arm-none-eabi-newlib \
	python3-pip
	pip3 install --upgrade pip
	pip3 install nrfutil

	# Step 3: Bootstrap the project
	- name: Bootstrap the project
	working-directory: ot-nrf528xx
	run: ./script/bootstrap

	# Step 4: Build the example
	- name: Build nRF52840 UART Example
	working-directory: ot-nrf528xx
	run: ./script/build nrf52840 UART_trans

	# Step 5: Convert ELF to HEX
	- name: Convert ELF to HEX
	working-directory: ot-nrf528xx
	run: arm-none-eabi-objcopy -O ihex build/bin/ot-cli-ftd build/bin/ot-cli-ftd.hex

	# Step 6: Upload artifacts
	- name: Upload binaries
	uses: actions/upload-artifact@v3
	with:
	name: ot-nrf528xx-binaries
	path: \|
	ot-nrf528xx/build/bin/ot-cli-ftd
	ot-nrf528xx/build/bin/ot-cli-ftd.hex

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