ci 초기 설정 추가 (issue#47) #5

	# This workflow uses actions that are not certified by GitHub.
	# They are provided by a third-party and are governed by
	# separate terms of service, privacy policy, and support
	# documentation.
	# This workflow will build a package using Gradle and then publish it to GitHub packages when a release is created
	# For more information see: https://github.com/actions/setup-java/blob/main/docs/advanced-usage.md#Publishing-using-gradle

	name: Gradle Package

	on:
	pull_request:
	types: [ opened, reopened, synchronize ]
	branches: [ 'main' ]

	jobs:
	build:

	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write

	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-java@v4
	with:
	distribution: 'corretto'
	java-version: '21'
	server-id: github # Value of the distributionManagement/repository/id field of the pom.xml
	settings-path: ${{ github.workspace }} # location for the settings.xml file

	- name: Setup Gradle
	run: chmod +x ./backend/gradlew

	- name: Build with Gradle
	run: \|
	cd backend
	./gradlew build

	- name: action-slack
	uses: 8398a7/action-slack@v3
	with:
	status: ${{ job.status }}
	author_name: Github Action Test
	fields: repo,message,commit,author,action,eventName,job,took
	env:
	SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
	if: failure()

Provide feedback