style: format code with Google Java Format

This commit fixes the style issues introduced in 754eb04 according to the output
from Google Java Format.

Details: None

src/test/java/com/github/brenoepics/at4j/data/DetectedLanguageTest.java

@@ -1,12 +1,12 @@
 package com.github.brenoepics.at4j.data;
 
+import static org.junit.jupiter.api.Assertions.*;
+
 import com.fasterxml.jackson.core.JsonProcessingException;
-import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
 import org.junit.jupiter.api.Test;
 
-import static org.junit.jupiter.api.Assertions.*;
-
 class DetectedLanguageTest {
 
   @Test