Fix checkstyle

Author: RanVaknin

core/aws-core/src/main/java/software/amazon/awssdk/awscore/interceptor/TraceIdExecutionInterceptor.java

@@ -39,7 +39,7 @@ public class TraceIdExecutionInterceptor implements ExecutionInterceptor {
 
     @Override
     public void beforeExecution(Context.BeforeExecution context, ExecutionAttributes executionAttributes) {
-        if(lambdaFunctionNameEnvironmentVariable().isPresent()) {
+        if (lambdaFunctionNameEnvironmentVariable().isPresent()) {
             String traceId = SdkInternalThreadLocal.get(CONCURRENT_TRACE_ID_KEY);
             if (traceId != null) {
                 executionAttributes.putAttribute(TRACE_ID, traceId);