Move back deprecation of java utf8 feature to 2024.

This doesn't change the support window of the feature, but will make edition 2023 slightly less noisy.

PiperOrigin-RevId: 638750805

Author: mkruskal-google

java/core/src/main/resources/google/protobuf/java_features.proto

@@ -57,7 +57,7 @@ message JavaFeatures {
     targets = TARGET_TYPE_FILE,
     feature_support = {
       edition_introduced: EDITION_2023,
-      edition_deprecated: EDITION_2023,
+      edition_deprecated: EDITION_2024,
       deprecation_warning: "The Java-specific utf8 validation feature is "
                            "deprecated and is scheduled to be removed in "
                            "edition 2025.  Utf8 validation behavior should "