build: switch to junit 5

src/test/java/me/bobert/netneutrality/music/source/UdioAudioSourceManagerTest.java

@@ -8,10 +8,10 @@ package me.bobert.netneutrality.music.source;
 import com.sedmelluq.discord.lavaplayer.track.AudioItem;
 import com.sedmelluq.discord.lavaplayer.track.AudioReference;
 import com.sedmelluq.discord.lavaplayer.track.AudioTrackInfo;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
 
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
 
 public class UdioAudioSourceManagerTest {
 

src/test/java/me/bobert/netneutrality/utils/SettingsTest.java

@@ -6,9 +6,9 @@ package me.bobert.netneutrality.utils;
  * https://discord.gg/qUa6zNFZsd
  */
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.*;
+import static org.junit.jupiter.api.Assertions.*;
 
 public class SettingsTest {