syncer(dm): add more comment about causality(or dependency detect) #34061

	name: Check & Build

	on:
	push:
	branches:
	- master
	- "release-[0-9].[0-9]*"
	paths-ignore:
	- '*/.md'
	- '**/OWNERS'
	- 'OWNERS'
	- 'OWNERS_ALIASES'

	pull_request:
	branches:
	- master
	- "release-[0-9].[0-9]*"
	paths-ignore:
	- '*/.md'
	- '**/OWNERS'
	- 'OWNERS'
	- 'OWNERS_ALIASES'

	# See: https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#concurrency.
	concurrency:
	group: ${{ github.ref }}-${{ github.workflow }}
	cancel-in-progress: true

	jobs:
	docker_build:
	name: Docker Build
	runs-on: ubuntu-latest
	steps:
	- name: Check out code into the Go module directory
	uses: actions/checkout@v2

	- name: Build-cdc
	run: docker build -f ./deployments/ticdc/docker/Dockerfile .

	- name: Build-dm
	run: docker build -f ./dm/Dockerfile .

	- name: Build-engine
	run: docker build -f ./deployments/engine/docker/Dockerfile .

	mac_build:
	name: Mac OS Build
	runs-on: macos-latest
	steps:
	- name: Check out code into the Go module directory
	uses: actions/checkout@v2

	- name: Setup Go environment
	uses: actions/setup-go@v3
	with:
	go-version: '1.23'

	- name: Cache Tools
	id: cache-tools
	uses: actions/cache@v2
	with:
	path: tools/bin
	key: macos-latest-ticdc-tools-${{ hashFiles('tools/check/go.sum') }}

	- name: Build
	run: make build

	- name: Check
	run: make check

	arm_build:
	runs-on: [ARM64]
	name: Arm Build
	strategy:
	fail-fast: false
	matrix:
	arch: [ARM64]
	steps:
	- name: Check out code
	uses: actions/checkout@v2

	- name: Setup Go environment
	uses: actions/setup-go@v3
	with:
	go-version: '1.23'

	- name: Build
	run: make build

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