fixes nextcloud openid changes

build.gradle

@@ -8,7 +8,7 @@ plugins {
 }
 
 group = 'de.jottyfan.bico'
-version = '0.3.0'
+version = '0.3.1'
 
 description = """BibleClassOrganizer"""
 
@@ -72,6 +72,7 @@ dependencies {
 	runtimeOnly 'org.springframework.boot:spring-boot-starter-tomcat'
 
 	testImplementation 'org.springframework.boot:spring-boot-starter-test'
+	testImplementation 'com.fasterxml.jackson.core:jackson-databind'
 }
 
 test {