Update Dart version, migrate deprecations, resolve formatting blocker… #124

	name: Test Assets for APIs
	on:
	push:
	branches:
	- main
	pull_request:

	# Declare default permissions as read only.
	permissions: read-all

	jobs:
	build:
	name: Test Assets for APIs
	runs-on: ubuntu-latest
	strategy:
	fail-fast: true
	steps:
	# Set up Flutter.
	- name: Clone Flutter repository with master channel
	uses: subosito/flutter-action@48cafc24713cca54bbe03cdc3a423187d413aafa
	with:
	channel: master
	- name: Setup environment
	run: \|
	flutter doctor -v
	# Pinned version of the plugin tools, to avoid breakage in this repository
	# when pushing updates from flutter/plugins.
	dart pub global activate flutter_plugin_tools 0.13.4+3
	# Checkout assets-for-api-docs code and get packages.
	- name: Checkout Assets for APIs code
	uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
	- name: analyze+format - format
	run: ./ci/tool_runner format --fail-on-change --clang-format=clang-format-12
	# Analize+format
	- name: analyze+format - license
	run: dart pub global run flutter_plugin_tools license-check
	- name: analyze+format - analyze
	run: ./ci/tool_runner analyze --custom-analysis=web_benchmarks/testing/test_app,flutter_lints/example
	- name: analyze+format - pubspec
	run: ./ci/tool_runner pubspec-check
	# Publishable
	- name: publishable - version
	run: ./ci/tool_runner version-check
	- name: publishable - publishable
	run: ./ci/tool_runner publish-check --allow-pre-release
	# Tests
	- name: test
	run: ./ci/test

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