🐛 add jacoco plugin to gradle

backend/build.gradle

@@ -2,6 +2,7 @@ plugins {
 	id 'java'
 	id 'org.springframework.boot' version '3.2.7'
 	id 'io.spring.dependency-management' version '1.1.5'
+	id 'jacoco'
 }
 
 group = 'net.pengcook'
@@ -28,7 +29,7 @@ dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
 	implementation 'com.github.ulisesbocchio:jasypt-spring-boot-starter:3.0.5'
 	implementation 'com.google.firebase:firebase-admin:9.3.0'
-    implementation 'com.auth0:java-jwt:4.4.0'
+	implementation 'com.auth0:java-jwt:4.4.0'
 
 	runtimeOnly 'mysql:mysql-connector-java:8.0.33'
 	runtimeOnly 'com.h2database:h2'
@@ -50,10 +51,10 @@ jar {
 }
 
 jacocoTestReport {
-    dependsOn test
-    reports {
-        xml.required = true
-        csv.required = false
-        html.required = false
-    }
+	dependsOn test
+	reports {
+		xml.required = true
+		csv.required = false
+		html.required = false
+	}
 }