Update go version to 1.21 #94

	name: build-pr

	on:
	pull_request:
	branches:
	- main

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v2
	- name: setup go environment
	uses: actions/setup-go@v1
	with:
	go-version: '1.20'
	- name: run unit tests
	run: sudo pip install virtualenv && make test
	- name: build binary
	run: make build_linux link_linux
	- name: run acceptance tests
	run: make acceptance
	- name: upload coverage report
	uses: actions/upload-artifact@main
	with:
	name: helmpush-coverage-report-${{ github.sha }}
	path: .cover/
	if: always()
	- name: upload acceptance report
	uses: actions/upload-artifact@main
	with:
	name: helmpush-acceptance-report-${{ github.sha }}
	path: .robot/
	if: always()

Provide feedback