feat(NU.nl): Support version 11.3.0 (#4925)

extensions/nunl/src/main/java/app/revanced/extension/nunl/ads/HideAdsPatch.java

@@ -82,7 +82,7 @@ public class HideAdsPatch {
 
                 // Filter HeaderBlock with known ads until next HeaderBlock.
                 if (currentBlock instanceof HeaderBlock headerBlock) {
-                    StyledText headerText = headerBlock.component20();
+                    StyledText headerText = headerBlock.getTitle();
                     if (headerText != null) {
                         skipFullHeader = false;
                         for (String blockedHeaderBlock : blockedHeaderBlocks) {

extensions/nunl/stub/src/main/java/nl/nu/performance/api/client/objects/HeaderBlock.java

@@ -3,8 +3,7 @@ package nl.nu.performance.api.client.objects;
 import nl.nu.performance.api.client.interfaces.Block;
 
 public class HeaderBlock extends Block {
-    // returns title
-    public final StyledText component20() {
+    public final StyledText getTitle() {
         throw new UnsupportedOperationException("Stub");
     }
 }