update node version from 14 to 20 in codegen #2

# to view logs

	name: codegen

	on:
	push:
	branches-ignore:
	- '**'
	tags:
	- 'v..*'

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	with:
	persist-credentials: false # otherwise, the token used is the GITHUB_TOKEN, instead of your personal token
	fetch-depth: 0 # otherwise, you will failed to push refs to dest repo

	- name: Setup Node.js
	uses: actions/setup-node@v1
	with:
	node-version: '20'

	# Restore the yarn cache
	- uses: c-hive/gha-yarn-cache@v1

	- name: Yarn install
	run: yarn install

	- name: Yarn Compile
	run: yarn compile

	- uses: actions/checkout@v2
	with:
	repository: ethersphere/go-price-oracle-abi
	path: go
	persist-credentials: false # otherwise, the token used is the GITHUB_TOKEN, instead of your personal token
	fetch-depth: 0 # otherwise, you will failed to push refs to dest repo
	ref: master

	- name: Get tag
	id: tag
	uses: dawidd6/action-get-tag@v1

	- name: Commit files
	run: \|
	mkdir -p go/priceoracleabi
	./codegen/go2.sh "go/priceoracleabi/abi_${{steps.tag.outputs.tag}}.go" "${{steps.tag.outputs.tag}}"
	cd go
	git config --local user.email "bee-worker@ethswarm.org"
	git config --local user.name "bee-worker"
	git add .
	git commit -m "generate code for price oracle contract ${{steps.tag.outputs.tag}}" -a
	git tag "${{steps.tag.outputs.tag}}"

	- name: Push changes
	uses: ad-m/github-push-action@master
	with:
	repository: ethersphere/go-price-oracle-abi
	directory: go
	github_token: ${{ secrets.GHA_PAT_BASIC }}
	branch: master
	tags: true

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