Ensure the classes to be bound in JAXB are cleared in DEV mode

The classes in the recorder were not cleared when restaring the app, so the classes to be bound were accumulated in each iteration.

Fix quarkusio#33441

(cherry picked from commit 4a5006e)

extensions/jaxb/deployment/src/main/java/io/quarkus/jaxb/deployment/JaxbProcessor.java

@@ -322,6 +322,7 @@ void bindClassesToJaxbContext(
             SynthesisFinishedBuildItem beanContainerState,
             JaxbContextConfigRecorder jaxbContextConfig /* Force the build time container to invoke this method */) {
 
+        jaxbContextConfig.reset();
         final BeanResolver beanResolver = beanContainerState.getBeanResolver();
         final Set<BeanInfo> beans = beanResolver
                 .resolveBeans(Type.create(DotName.createSimple(JAXBContext.class), org.jboss.jandex.Type.Kind.CLASS));

extensions/jaxb/runtime/src/main/java/io/quarkus/jaxb/runtime/JaxbContextConfigRecorder.java

@@ -15,6 +15,10 @@ public void addClassesToBeBound(Collection<Class<?>> classes) {
         this.classesToBeBound.addAll(classes);
     }
 
+    public void reset() {
+        classesToBeBound.clear();
+    }
+
     public static Set<Class<?>> getClassesToBeBound() {
         return Collections.unmodifiableSet(classesToBeBound);
     }

extensions/jaxb/runtime/src/main/java/io/quarkus/jaxb/runtime/JaxbContextProducer.java

@@ -4,8 +4,10 @@
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 
 import jakarta.enterprise.context.ApplicationScoped;
 import jakarta.enterprise.context.RequestScoped;
@@ -71,7 +73,7 @@ public JAXBContext createJAXBContext(Instance<JaxbContextCustomizer> customizers
                 customizer.customizeContextProperties(properties);
             }
 
-            List<Class> classes = new ArrayList<>();
+            Set<Class> classes = new HashSet<>();
             classes.addAll(Arrays.asList(extraClasses));
             classes.addAll(JaxbContextConfigRecorder.getClassesToBeBound());