chore(deps): update alpine docker tag to v3.20.3 #113

	name: update README.md
	on:
	pull_request:
	types: [closed]
	jobs:
	readme:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: "0"
	- name: Update datasource in Dockerfile
	run: \|
	sed \
	--regexp-extended \
	--quiet \
	's/.alpine:([0-9]).([0-9]+)./\1 \2/p' Dockerfile \| \
	xargs \
	--max-args=2 \
	bash \
	-c \
	'sed \
	--in-place \
	--regexp-extended \
	"s/alpine_[0-9]_[0-9]+/alpine_${0}_${1}/" Dockerfile'
	- name: Update component versions in README.md
	run: \|
	sed \
	--regexp-extended \
	--quiet \
	's/(ARG\|ENV)\s(.)_VERSION(=\|\s)(.)/\L\2 (\4)/p' Dockerfile \| \
	xargs \
	--max-args=2 \
	bash \
	-c \
	'sed \
	--in-place \
	--regexp-extended \
	"s/${0}.*$/${0} ${1}/" README.md'
	- name: Update alpine version in README.md
	run: \|
	sed \
	--regexp-extended \
	--quiet \
	's/FROM\s+alpine:(.*)/(\1)/p' Dockerfile \| \
	xargs \
	bash \
	-c \
	'sed \
	--in-place \
	--regexp-extended \
	"s/linux (.*) with/linux ${0} with/" README.md'
	- name: Push updated README.md
	uses: EndBug/add-and-commit@v9
	with:
	message: "README: update version"
	default_author: github_actions

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