update action/checkout version to 4 #235

	# This is a basic workflow to help you get started with Actions

	name: CI

	# Controls when the workflow will run
	on:
	# Triggers the workflow on push or pull request events but only for the main branch
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "build"
	build:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v4

	- name: Validate Fastlane Supply Metadata
	uses: ashutoshgngwr/validate-fastlane-supply-metadata@v1

	run-unit-tests:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- uses: subosito/flutter-action@v2
	with:
	channel: 'stable'

	- run: flutter pub get
	- run: flutter test

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