Suggest correct casing for misspelled credentialless iframe attribute (#36322)

## Summary

Follow-up to #36148 (which added credentialless as a recognized boolean
attribute for iframes). Adds credentialless to possibleStandardNames so
React's dev warning can suggest the correct casing when users write it
as Credentialless (or another incorrect case). Includes an SSR test
asserting the "Did you mean credentialless?" warning fires.

 ## Test plan

- yarn test ReactDOMComponent passes, including the new should warn
about incorrect casing on the credentialless property (ssr) case

DiffTrain build for [94643c3](94643c3)

Author: hoxyq

compiled/facebook-www/REVISION

@@ -1 +1 @@
-306a01b4e0242e9379ba971c8925670651f16818
+94643c3b8516928e4cc7fad99912272670a0a990

compiled/facebook-www/REVISION_TRANSFORMS

@@ -1 +1 @@
-306a01b4e0242e9379ba971c8925670651f16818
+94643c3b8516928e4cc7fad99912272670a0a990

compiled/facebook-www/React-dev.classic.js

@@ -1482,7 +1482,7 @@ __DEV__ &&
     exports.useTransition = function () {
       return resolveDispatcher().useTransition();
     };
-    exports.version = "19.3.0-www-classic-306a01b4-20260420";
+    exports.version = "19.3.0-www-classic-94643c3b-20260421";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/React-dev.modern.js

@@ -1482,7 +1482,7 @@ __DEV__ &&
     exports.useTransition = function () {
       return resolveDispatcher().useTransition();
     };
-    exports.version = "19.3.0-www-modern-306a01b4-20260420";
+    exports.version = "19.3.0-www-modern-94643c3b-20260421";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/React-prod.classic.js

@@ -610,4 +610,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.3.0-www-classic-306a01b4-20260420";
+exports.version = "19.3.0-www-classic-94643c3b-20260421";

compiled/facebook-www/React-prod.modern.js

@@ -610,4 +610,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.3.0-www-modern-306a01b4-20260420";
+exports.version = "19.3.0-www-modern-94643c3b-20260421";

compiled/facebook-www/React-profiling.classic.js

@@ -614,7 +614,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.3.0-www-classic-306a01b4-20260420";
+exports.version = "19.3.0-www-classic-94643c3b-20260421";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/React-profiling.modern.js

@@ -614,7 +614,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.3.0-www-modern-306a01b4-20260420";
+exports.version = "19.3.0-www-modern-94643c3b-20260421";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/ReactART-dev.classic.js

@@ -20434,10 +20434,10 @@ __DEV__ &&
     (function () {
       var internals = {
         bundleType: 1,
-        version: "19.3.0-www-classic-306a01b4-20260420",
+        version: "19.3.0-www-classic-94643c3b-20260421",
         rendererPackageName: "react-art",
         currentDispatcherRef: ReactSharedInternals,
-        reconcilerVersion: "19.3.0-www-classic-306a01b4-20260420"
+        reconcilerVersion: "19.3.0-www-classic-94643c3b-20260421"
       };
       internals.overrideHookState = overrideHookState;
       internals.overrideHookStateDeletePath = overrideHookStateDeletePath;
@@ -20472,7 +20472,7 @@ __DEV__ &&
     exports.Shape = Shape;
     exports.Surface = Surface;
     exports.Text = Text;
-    exports.version = "19.3.0-www-classic-306a01b4-20260420";
+    exports.version = "19.3.0-www-classic-94643c3b-20260421";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

compiled/facebook-www/ReactART-dev.modern.js

@@ -20205,10 +20205,10 @@ __DEV__ &&
     (function () {
       var internals = {
         bundleType: 1,
-        version: "19.3.0-www-modern-306a01b4-20260420",
+        version: "19.3.0-www-modern-94643c3b-20260421",
         rendererPackageName: "react-art",
         currentDispatcherRef: ReactSharedInternals,
-        reconcilerVersion: "19.3.0-www-modern-306a01b4-20260420"
+        reconcilerVersion: "19.3.0-www-modern-94643c3b-20260421"
       };
       internals.overrideHookState = overrideHookState;
       internals.overrideHookStateDeletePath = overrideHookStateDeletePath;
@@ -20243,7 +20243,7 @@ __DEV__ &&
     exports.Shape = Shape;
     exports.Surface = Surface;
     exports.Text = Text;
-    exports.version = "19.3.0-www-modern-306a01b4-20260420";
+    exports.version = "19.3.0-www-modern-94643c3b-20260421";
     "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
       "function" ===
         typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&