upgraded spring boot starter

build.gradle

@@ -1,13 +1,13 @@
 plugins {
-	id 'org.springframework.boot' version '2.2.4.RELEASE'
+	id 'org.springframework.boot' version '2.2.5.RELEASE'
 	id 'io.spring.dependency-management' version '1.0.9.RELEASE'
 	id 'java'
     id 'java-library'
     id 'maven-publish'
     id 'com.jfrog.bintray' version '1.8.4'
-    id 'com.github.ben-manes.versions' version '0.27.0'
+    id 'com.github.ben-manes.versions' version '0.28.0'
     id 'net.researchgate.release' version '2.8.1'
-    id 'com.github.breadmoirai.github-release' version '2.2.10'
+    id 'com.github.breadmoirai.github-release' version '2.2.12'
 }
 
 repositories {
@@ -25,7 +25,7 @@ jar {
 
 dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter'
-	api 'com.redislabs:lettusearch:1.12.8'
+	api 'com.redislabs:lettusearch:1.13.0'
 	api 'org.apache.commons:commons-pool2'
 	compileOnly 'org.projectlombok:lombok'
 	annotationProcessor 'org.projectlombok:lombok'
@@ -113,7 +113,8 @@ publishing {
 
 group = 'com.redislabs'
 description = 'Spring RediSearch'
-sourceCompatibility = '1.8'
+sourceCompatibility = JavaVersion.VERSION_1_8
+targetCompatibility = JavaVersion.VERSION_1_8
 
 task printVersion {
     doLast {
@@ -122,7 +123,7 @@ task printVersion {
 }
 
 githubRelease {
-    token = project.hasProperty('githubToken') ? project.property('githubToken') : System.getenv('GITHUB_TOKEN')
+    token = project.hasProperty('githubToken') ? project.property('githubToken') : ''
     owner "RediSearch"
     repo "spring-redisearch"
 }