Add typed data for old flutter #123

	name: Dart/Flutter Package Analyzer
	on: [push, pull_request]

	jobs:

	package-analysis:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2

	- uses: axel-op/dart-package-analyzer@v3
	# set an id for the current step
	id: analysis
	with:
	githubToken: ${{ secrets.GITHUB_TOKEN }}

	# You can then use this id to retrieve the outputs in the next steps.
	# The following step shows how to exit the workflow with an error if the total score in percentage is below 50:
	- name: Check scores
	env:
	# NB: "analysis" is the id set above. Replace it with the one you used if different.
	TOTAL: ${{ steps.analysis.outputs.total }}
	TOTAL_MAX: ${{ steps.analysis.outputs.total_max }}
	ANALYSIS: ${{ steps.analysis.outputs.analysis }}
	ANALYSIS_MAX: ${{ steps.analysis.outputs.analysis_max }}
	run: \|
	if (( $ANALYSIS < $ANALYSIS_MAX ))
	then
	echo Unacceptable analysis score! Needs to be maxed out!
	exit 1
	elif (( $TOTAL < ($TOTAL_MAX - 10) ))
	then
	echo Unacceptable total score! Check dependencies and other factors!
	exit 2
	fi

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