updated gradle and spring boot

* gradle 5.6.2 -> 6.1.1
* spring boot 2.1.11 -> 2.2.4
* junit-jupiter 5.5.1 -> 5.6.0

build.gradle

@@ -1,44 +1,34 @@
-
-buildscript {
-    ext.kotlin_version = '1.3.61'
-    ext.spring_boot_version = '2.1.11.RELEASE'
-
-    repositories {
-        jcenter()
-    }
-
-    dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath "org.jetbrains.kotlin:kotlin-allopen:$kotlin_version"
-        classpath "org.springframework.boot:spring-boot-gradle-plugin:$spring_boot_version"
-    }
+plugins {
+    id 'org.jetbrains.kotlin.jvm' version '1.3.61'
+    id 'org.jetbrains.kotlin.plugin.spring' version '1.3.61'
+    id 'org.springframework.boot' version '2.2.4.RELEASE'
+    id 'io.spring.dependency-management' version '1.0.9.RELEASE'
 }
 
-apply plugin: 'kotlin'
-apply plugin: 'kotlin-spring'
-apply plugin: 'org.springframework.boot'
-apply plugin: 'io.spring.dependency-management'
-
-test {
-    useJUnitPlatform()
-
-    testLogging {
-        events "PASSED", "FAILED", "SKIPPED"
-    }
-}
+group 'org.mosad'
+version '1.2.2'
 
 repositories {
     jcenter()
 }
 
 dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
-    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.3"
-    implementation "org.jsoup:jsoup:1.12.1"
-    implementation "org.springframework.boot:spring-boot-starter-web"
-    implementation "com.google.code.gson:gson:2.8.6"
+    implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation 'org.jetbrains.kotlin:kotlin-reflect'
+    implementation 'org.jetbrains.kotlin:kotlin-stdlib'
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.3'
+    implementation 'org.jsoup:jsoup:1.12.1'
+    implementation 'com.google.code.gson:gson:2.8.6'
 
-    testImplementation("org.junit.jupiter:junit-jupiter:5.5.1")
+    testImplementation 'org.junit.jupiter:junit-jupiter:5.6.0'
+}
+
+test {
+    useJUnitPlatform()
+
+    testLogging {
+        events 'PASSED', 'FAILED', 'SKIPPED'
+    }
 }
 
 compileKotlin {
@@ -47,6 +37,3 @@ compileKotlin {
 compileTestKotlin {
     kotlinOptions.jvmTarget = "11"
 }
-
-group 'org.mosad'
-version '1.2.1'