[step1][Improve]Use flink’s checkstyle to format the project #5

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	---
	name: Code Style Checker

	on:
	pull_request:

	jobs:
	java-checkstyle:
	name: "CheckStyle"
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	with:
	persist-credentials: false
	submodules: recursive

	- name: Run java checkstyle
	run:
	cd flink-doris-connector && mvn clean checkstyle:check

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