feat: define resource as final

Signed-off-by: Otavio Santana <[email protected]>

Author: otaviojava

quarkus-jnosql-oracle-nosql/src/main/java/org/acme/FruitResource.java

@@ -12,7 +12,7 @@
 @Path("/fruits")
 public class FruitResource {
 
-    private Set<Fruit> fruits = Collections.newSetFromMap(Collections.synchronizedMap(new LinkedHashMap<>()));
+    private final Set<Fruit> fruits = Collections.newSetFromMap(Collections.synchronizedMap(new LinkedHashMap<>()));
 
     public FruitResource() {
         fruits.add(new Fruit("Apple", "Winter fruit"));