tag slow tests, so they can be excluded/included

as the runtime of the tests can be long, tag the slow ones so they can
be excluded more easy on the command line or configuration. see here
for hints:
https://mkyong.com/junit5/junit-5-tagging-and-filtering-tag-examples/
https://stackoverflow.com/questions/60474190/how-to-include-exclude-junit5-tags-in-gradle-cmd

to run tests with tag slow only, or not run tags with tag slow do,
quoting the expression might be necessary depending on the shell:
  mvn clean install -Dtest=FuraffinityRipperTest -Dgroups=slow
  mvn clean install -Dtest=FuraffinityRipperTest '-Dgroups=!slow'

README.md

@@ -88,10 +88,13 @@ This will include all dependencies in the JAR.
 
 # Running Tests
 
-After building you can run tests by running the following:
+Tests can be marked as beeing slow or not. Default is to run all tests. Slow tests can be excluded to run, and slow
+tests can be run on its own. After building you can run tests, quoting might be necessary depending on your shell:
 
 ```bash
 mvn test
+mvn test -Dgroups=slow
+mvn test '-Dgroups=!slow'
 ```
 
 Please note that some tests may fail as sites change and our rippers become out of date.

pom.xml

@@ -143,18 +143,7 @@
       </plugin>
       <plugin>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.2</version>
-        <configuration>
-          <!--<groups>fast</groups>-->
-          <excludedGroups>slow</excludedGroups>
-          <properties>
-            <!--
-						<configurationParameters>
-							junit.jupiter.conditions.deactivate = *
-						</configurationParameters>
-						-->
-          </properties>
-        </configuration>
+        <version>3.0.0-M5</version>
       </plugin>
     </plugins>
   </build>
@@ -163,7 +152,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-surefire-report-plugin</artifactId>
-          <version>3.0.0-M3</version>
+          <version>3.0.0-M5</version>
           <configuration>
             <showSuccess>false</showSuccess>
           </configuration>

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

@@ -5,15 +5,18 @@ import java.net.URL;
 
 import com.rarchives.ripme.ripper.rippers.FuraffinityRipper;
 import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
 
 public class FuraffinityRipperTest extends RippersTest {
     @Test
+    @Tag("slow")
     public void testFuraffinityAlbum() throws IOException {
         FuraffinityRipper ripper = new FuraffinityRipper(new URL("https://www.furaffinity.net/gallery/spencerdragon/"));
         testRipper(ripper);
     }
     @Test
+    @Tag("slow")
     public void testFuraffinityScrap() throws IOException {
         FuraffinityRipper ripper = new FuraffinityRipper(new URL("http://www.furaffinity.net/scraps/sssonic2/"));
         testRipper(ripper);