fixup: fix comment

Co-authored-by: alexandraoberaigner <[email protected]>
Signed-off-by: Simon Schrottner <[email protected]>

Author: aepfli

src/main/java/dev/openfeature/sdk/HookData.java

@@ -39,7 +39,7 @@ public interface HookData {
     <T> T get(String key, Class<T> type);
 
     /**
-     * Default implementation using ConcurrentHashMap for thread safety.
+     * Default implementation is using a synchronized map. 
      */
     static HookData create() {
         return new DefaultHookData();