Missing OrasModel on MirrorCandidate (#840)

Signed-off-by: Valentin Delaye <jonesbusy@users.noreply.github.com>

Author: jonesbusy

src/main/java/land/oras/Registry.java

@@ -1488,6 +1488,7 @@ boolean existsWithMirrorFallback(ContainerRef containerRef) {
      * @param registry The registry pointed at the mirror's location
      * @param ref The container reference rewritten for the mirror
      */
+    @OrasModel
     private record MirrorCandidate(Registry registry, ContainerRef ref) {}
 
     /**

src/test/java/land/oras/ClassAnnotationsTest.java

@@ -49,7 +49,7 @@ void shouldHaveAnnotationOnModel() {
                     .loadClasses());
 
             // Check number of classes
-            assertEquals(42, modelClasses.size());
+            assertEquals(43, modelClasses.size());
 
             // Check classes
             assertTrue(modelClasses.contains(Annotations.class));