Switch to monthly checks from Dependabot #15

	name: Dart

	on:
	push:
	branches: [ "main" ]
	pull_request:
	branches: [ "main" ]
	schedule:
	- cron: '0 5 1 * *'

	jobs:
	analyze:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	- uses: dart-lang/setup-dart@v1

	- name: Cache dependencies
	uses: actions/cache@v4
	with:
	path: ${{ env.PUB_CACHE }}
	key: ${{ runner.os }}-pub

	- name: Install dependencies
	run: dart pub get --enforce-lockfile

	- name: Verify formatting
	run: dart format --output=none --set-exit-if-changed .

	- name: Analyze project source
	run: dart analyze --fatal-infos

	test:
	runs-on: ${{ matrix.os }}

	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	sdk: [stable, beta, dev]

	steps:
	- uses: actions/checkout@v4
	- uses: dart-lang/setup-dart@v1
	with:
	sdk: ${{ matrix.sdk }}

	- uses: actions/cache@v4
	with:
	path: ${{ env.PUB_CACHE }}
	key: ${{ runner.os }}-pub-${{ matrix.sdk }}
	restore-keys: \|
	${{ runner.OS }}-pub

	- name: Install dependencies
	run: dart pub get

	- name: Run tests
	run: dart test

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