Bump debian from 12.7-slim to 12.8-slim in /action-a #165

	name: Multiline output
	on: push

	jobs:
	test:
	runs-on: ubuntu-20.04
	steps:
	- name: define list
	id: files
	run: \|
	echo "list=test.tex \"test 2.tex\"" >>${GITHUB_OUTPUT}
	- name: show space separated list
	run: echo ${{ steps.files.outputs.list }}
	- name: make list newline separated
	id: lines
	run: \|
	import os
	import shlex
	import secrets
	output = '\n'.join(shlex.split(os.environ['INPUT_LIST']))
	delimiter = secrets.token_hex()
	with open(os.environ['GITHUB_OUTPUT'], 'a') as fh:
	print(f'list<<{delimiter}\n{output}\n{delimiter}', file=fh)
	shell: python3 {0}
	env:
	INPUT_LIST: ${{ steps.files.outputs.list }}
	- name: show line separated list
	run: echo "${LIST}"
	env:
	LIST: ${{ steps.lines.outputs.list }}

	multiple_outputs:
	runs-on: ubuntu-20.04
	steps:
	- name: set outputs
	id: colors
	run: \|
	echo "FIRST=green" >>$GITHUB_OUTPUT
	echo "SECOND=pink" >>$GITHUB_OUTPUT
	- name: show outputs
	run: \|
	echo "The first color is ${{ steps.colors.outputs.FIRST }}"
	echo "The second color is ${{ steps.colors.outputs.SECOND }}"

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