[BE] BUILD: kotlin build jar로 실행 가능하도록 변경 #2

	name: backend CI

	on:
	push:
	paths:
	- "cron/**"
	pull_request:
	paths:
	- "cron/**"
	workflow_dispatch:

	permissions:
	contents: read

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- name: Make ssh file
	run: \|
	mkdir -p ~/.ssh
	echo '${{ secrets.SSH_CONFIG }}' \| base64 -d > ~/.ssh/id_rsa
	chmod 400 ~/.ssh/id_rsa
	- name: Checkout
	uses: actions/checkout@v3
	with:
	submodule: true
	- name: Update submodule
	run: \|
	git submodule update --init config/
	- name: Set up JDK 17
	uses: actions/setup-java@v3
	with:
	java-version: "17"
	distribution: "corretto"
	- name: Cache Gradle packages
	uses: actions/cache@v3
	with:
	path: \|
	~/.gradle/caches
	~/.gradle/wrapper
	key: ${{ runner.os }}-gradle-${{ hashFiles('*/.gradle', '*/gradle-wrapper.properties') }}
	restore-keys: \|
	${{ runner.os }}-gradle-
	- name: Build with Gradle
	run: \|
	cd cron
	chmod +x gradlew
	./gradlew build
	shell: bash

Provide feedback