Fix clone return for Paper PlayerProfile (#12984)

Author: Doc94

paper-api/src/main/java/com/destroystokyo/paper/event/server/PaperServerListPingEvent.java

@@ -477,7 +477,7 @@ public boolean complete(final boolean textures, final boolean onlineMode) {
         }
 
         @Override
-        public org.bukkit.profile.@NotNull PlayerProfile clone() {
+        public @NotNull PlayerProfile clone() {
             throw new UnsupportedOperationException();
         }
 

paper-api/src/main/java/com/destroystokyo/paper/profile/PlayerProfile.java

@@ -243,4 +243,12 @@ default boolean complete() {
     default boolean hasTextures() {
         return this.hasProperty("textures");
     }
+
+    /**
+     * {@inheritDoc}
+     *
+     * @return the cloned player profile.
+     */
+    @Override
+    PlayerProfile clone();
 }