Reduce equal method candidates log from WARNING to FINE

The "Both X and Y are equal candidates" message fires during normal
CORS preflight handling where wildcard media types are used, producing
noisy logs. Downgrade to FINE since the behavior is deterministic and
users can enable debug logging to investigate ambiguous routing.

Closes #862

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: gnodet

rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/model/OperationResourceInfoComparatorBase.java

@@ -98,8 +98,8 @@ protected int compare(OperationResourceInfo e1, OperationResourceInfo e2, boolea
                 e1.getClassResourceInfo().getServiceClass().getName() + "#" + e1.getMethodToInvoke().getName();
             String m2Name =
                 e2.getClassResourceInfo().getServiceClass().getName() + "#" + e2.getMethodToInvoke().getName();
-            LOG.warning("Both " + m1Name + " and " + m2Name + " are equal candidates for handling the current request"
-                        + " which can lead to unpredictable results");
+            LOG.fine("Both " + m1Name + " and " + m2Name + " are equal candidates for handling the current request"
+                     + " which can lead to unpredictable results");
         }
         return result;
     }