improve install.sh and release ci #4251

	# Check for reproducible build

	name: reprotest

	# Controls when the action will run. Triggers the workflow on push or pull request
	# events but only for the master branch
	on:
	pull_request:
	branches:
	- master
	- release-*
	paths-ignore:
	- '**.html'
	- '**.md'
	- 'CNAME'
	- 'LICENSE'
	- 'doc/**'
	- 'embed/templates/examples/**'
	push:
	branches:
	- release-*
	paths-ignore:
	- '**.html'
	- '**.md'
	- 'CNAME'
	- 'LICENSE'
	- 'doc/**'
	- 'embed/templates/examples/**'

	jobs:
	reprotest:
	# The type of runner that the job will run on
	runs-on: ubuntu-20.04

	strategy:
	matrix:
	go:
	- 1.21.x

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	- uses: actions/checkout@v3

	- name: Set up Go ${{ matrix.go }}
	uses: actions/setup-go@v4
	with:
	go-version: ${{ matrix.go }}

	- name: Install reprotest and prepare
	id: prepare_env
	run: \|
	echo ::set-output name=GOROOT::$GOROOT
	echo ::set-output name=GOPATH::$GOPATH
	sudo apt-get update && sudo apt-get -qy install reprotest

	- name: Check for reproducible build
	run: \|
	sudo reprotest \
	"make clean && \
	GOROOT=${{ steps.prepare_env.GOROOT }} \
	GOPATH=${{ steps.prepare_env.GOPATH }} \
	PATH=$GOROOT/bin:$PATH \
	BUILD_FLAGS='-trimpath -buildmode=pie -mod=readonly -modcacherw -buildvcs=false' \
	make build" \
	bin

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