add spotless

Author: shalk

instrumentation/rediscala-1.8/javaagent/src/test/java/io/opentelemetry/javaagent/instrumentation/rediscala/RediscalaClientTest.java

@@ -90,7 +90,7 @@ static void setUp() throws Exception {
   }
 
   @AfterAll
-   static void tearDown() throws Exception {
+  static void tearDown() throws Exception {
     if (system != null) {
       system.getClass().getMethod("terminate").invoke(system);
     }