Update to go-1.21 #2289

	name: Build RPM
	on:
	push:
	branches:
	- "main"
	pull_request: {}
	jobs:
	build:
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os:
	- ubuntu-latest
	go:
	- '1.20'
	steps:
	- name: Check out repository code
	uses: actions/checkout@v4
	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: ${{ matrix.go }}
	- name: Build rpm
	run: CONTAINER_RUNTIME=docker make test-rpmbuild
	- name: Upload linux binary and rpms
	uses: actions/upload-artifact@v4
	with:
	name: linux binary and rpm
	path: \|
	./crc
	./RPMS

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