Made jetty optional and upgraded junit

Author: JanHolger

pom.xml

@@ -56,11 +56,7 @@
             <groupId>org.eclipse.jetty</groupId>
             <artifactId>jetty-server</artifactId>
             <version>9.4.44.v20210927</version>
-        </dependency>
-        <dependency>
-            <groupId>org.eclipse.jetty.websocket</groupId>
-            <artifactId>websocket-server</artifactId>
-            <version>9.4.43.v20210629</version>
+            <optional>true</optional>
         </dependency>
         <dependency>
             <groupId>org.reflections</groupId>
@@ -70,12 +66,12 @@
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-api</artifactId>
-            <version>5.8.1</version>
+            <version>5.8.2</version>
         </dependency>
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-engine</artifactId>
-            <version>5.8.1</version>
+            <version>5.8.2</version>
             <scope>test</scope>
         </dependency>
     </dependencies>