Fix headings in React 19 CHANGELOG (facebook#31683)

Co-authored-by: eps1lon <sebastian.silbermann@vercel.com>

DiffTrain build for [7283a21](facebook@7283a21)

Author: 22388o

compiled-rn/VERSION_NATIVE_FB

@@ -1 +1 @@
-19.0.0-native-fb-db240980-20240927
+19.0.0-native-fb-7283a213-20241206

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/react-dom/cjs/ReactDOM-dev.js

@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<2df7c01876f53a778df315d6cb5f67c1>>
+ * @generated SignedSource<<d7cca79eeb2301cece9c81b098a1b7c2>>
  */
 
 "use strict";
@@ -420,5 +420,5 @@ __DEV__ &&
     exports.useFormStatus = function () {
       return resolveDispatcher().useHostTransitionStatus();
     };
-    exports.version = "19.0.0-native-fb-db240980-20240927";
+    exports.version = "19.0.0-native-fb-7283a213-20241206";
   })();

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/react-dom/cjs/ReactDOM-prod.js

@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<4121ec6434fc21db3839033bd8118315>>
+ * @generated SignedSource<<aece76fd6a68d460ef8c634c4e0a7397>>
  */
 
 "use strict";
@@ -203,4 +203,4 @@ exports.useFormState = function (action, initialState, permalink) {
 exports.useFormStatus = function () {
   return ReactSharedInternals.H.useHostTransitionStatus();
 };
-exports.version = "19.0.0-native-fb-db240980-20240927";
+exports.version = "19.0.0-native-fb-7283a213-20241206";

compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/react-dom/cjs/ReactDOM-profiling.js

@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<4121ec6434fc21db3839033bd8118315>>
+ * @generated SignedSource<<aece76fd6a68d460ef8c634c4e0a7397>>
  */
 
 "use strict";
@@ -203,4 +203,4 @@ exports.useFormState = function (action, initialState, permalink) {
 exports.useFormStatus = function () {
   return ReactSharedInternals.H.useHostTransitionStatus();
 };
-exports.version = "19.0.0-native-fb-db240980-20240927";
+exports.version = "19.0.0-native-fb-7283a213-20241206";