build: add test logger plugin

Add a Gradle test logger plugin that display which JUnit tests were executed
during the build.

SVC-1398

build.gradle

@@ -7,6 +7,7 @@ plugins {
 	id 'io.spring.dependency-management' version '1.1.4'
 	id 'com.diffplug.spotless' version '6.25.0'
 	id 'com.bmuschko.docker-spring-boot-application' version '9.4.0'
+	id 'com.adarshr.test-logger' version '4.0.0'
 }
 
 group = 'to.wetransform.hale'