remove junit-4.13

src/test/java/com/rarchives/ripme/tst/ripper/rippers/HentainexusRipperTest.java

@@ -7,11 +7,12 @@ import java.util.List;
 
 import com.rarchives.ripme.ripper.rippers.HentaiNexusRipper;
 import org.json.JSONObject;
-import org.junit.Assert;
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 public class HentainexusRipperTest extends RippersTest {
     @Test
     @Tag("flaky")
@@ -41,7 +42,7 @@ public class HentainexusRipperTest extends RippersTest {
                 testOK  = false;
             }
 
-            Assert.assertEquals(true, testOK);
+            assertEquals(true, testOK);
         }
 
     }

src/test/java/com/rarchives/ripme/tst/ripper/rippers/PorncomixinfoRipperTest.java

@@ -4,7 +4,7 @@ import java.io.IOException;
 import java.net.URL;
 
 import com.rarchives.ripme.ripper.rippers.PorncomixinfoRipper;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class PorncomixinfoRipperTest extends RippersTest {
     @Test

src/test/java/com/rarchives/ripme/tst/ripper/rippers/SoundgasmRipperTest.java

@@ -1,8 +1,8 @@
 package com.rarchives.ripme.tst.ripper.rippers;
 
 import com.rarchives.ripme.ripper.rippers.RedditRipper;
-import org.junit.Test;
 import com.rarchives.ripme.ripper.rippers.SoundgasmRipper;
+import org.junit.jupiter.api.Test;
 
 import java.io.IOException;
 import java.net.URL;