[playground] Downgrade Next.js to a secure version (facebook#35317)

Was bumped to a canary in facebook#34499
which got never released as stable.

Presumeably to use `Activity` which only made it into Activity in later
Next.js releases. However, `Activity` never ended up being used due to
incompatibilities with Monaco Editor. Downgrading should be safe.

Downgrading to fix
GHSA-9qr9-h5gf-34mp.
This will allow new deploys since Vercel is currently blocking new
deploys of unsafe version

---------

Co-authored-by: Eugene Choi <4eugenechoi@gmail.com>

DiffTrain build for [55480b4](facebook@55480b4)

Author: surajmaity1

compiled/eslint-plugin-react-hooks/index.js

@@ -271,11 +271,23 @@ __DEV__ &&
       );
     }
     function validateChildKeys(node) {
-      "object" === typeof node &&
-        null !== node &&
-        node.$$typeof === REACT_ELEMENT_TYPE &&
-        node._store &&
-        (node._store.validated = 1);
+      isValidElement(node)
+        ? node._store && (node._store.validated = 1)
+        : "object" === typeof node &&
+          null !== node &&
+          node.$$typeof === REACT_LAZY_TYPE &&
+          ("fulfilled" === node._payload.status
+            ? isValidElement(node._payload.value) &&
+              node._payload.value._store &&
+              (node._payload.value._store.validated = 1)
+            : node._store && (node._store.validated = 1));
+    }
+    function isValidElement(object) {
+      return (
+        "object" === typeof object &&
+        null !== object &&
+        object.$$typeof === REACT_ELEMENT_TYPE
+      );
     }
     var React = require("react"),
       dynamicFeatureFlags = require("ReactFeatureFlags"),
@@ -327,14 +339,18 @@ __DEV__ &&
     exports.jsxDEV = function (type, config, maybeKey, isStaticChildren) {
       var trackActualOwner =
         1e4 > ReactSharedInternals.recentlyCreatedOwnerStacks++;
+      if (trackActualOwner) {
+        var previousStackTraceLimit = Error.stackTraceLimit;
+        Error.stackTraceLimit = 10;
+        var debugStackDEV = Error("react-stack-top-frame");
+        Error.stackTraceLimit = previousStackTraceLimit;
+      } else debugStackDEV = unknownOwnerDebugStack;
       return jsxDEVImpl(
         type,
         config,
         maybeKey,
         isStaticChildren,
-        trackActualOwner
-          ? Error("react-stack-top-frame")
-          : unknownOwnerDebugStack,
+        debugStackDEV,
         trackActualOwner ? createTask(getTaskName(type)) : unknownOwnerDebugTask
       );
     };

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

@@ -271,11 +271,23 @@ __DEV__ &&
       );
     }
     function validateChildKeys(node) {
-      "object" === typeof node &&
-        null !== node &&
-        node.$$typeof === REACT_ELEMENT_TYPE &&
-        node._store &&
-        (node._store.validated = 1);
+      isValidElement(node)
+        ? node._store && (node._store.validated = 1)
+        : "object" === typeof node &&
+          null !== node &&
+          node.$$typeof === REACT_LAZY_TYPE &&
+          ("fulfilled" === node._payload.status
+            ? isValidElement(node._payload.value) &&
+              node._payload.value._store &&
+              (node._payload.value._store.validated = 1)
+            : node._store && (node._store.validated = 1));
+    }
+    function isValidElement(object) {
+      return (
+        "object" === typeof object &&
+        null !== object &&
+        object.$$typeof === REACT_ELEMENT_TYPE
+      );
     }
     var React = require("react"),
       dynamicFeatureFlags = require("ReactFeatureFlags"),
@@ -327,14 +339,18 @@ __DEV__ &&
     exports.jsxDEV = function (type, config, maybeKey, isStaticChildren) {
       var trackActualOwner =
         1e4 > ReactSharedInternals.recentlyCreatedOwnerStacks++;
+      if (trackActualOwner) {
+        var previousStackTraceLimit = Error.stackTraceLimit;
+        Error.stackTraceLimit = 10;
+        var debugStackDEV = Error("react-stack-top-frame");
+        Error.stackTraceLimit = previousStackTraceLimit;
+      } else debugStackDEV = unknownOwnerDebugStack;
       return jsxDEVImpl(
         type,
         config,
         maybeKey,
         isStaticChildren,
-        trackActualOwner
-          ? Error("react-stack-top-frame")
-          : unknownOwnerDebugStack,
+        debugStackDEV,
         trackActualOwner ? createTask(getTaskName(type)) : unknownOwnerDebugTask
       );
     };

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

@@ -1 +1 @@
-4082b0e7d3c042d49ef8987547b923051936956f
+55480b4d228986e502f4651f8e53a6f264a1858e

compiled/facebook-www/REVISION

@@ -1 +1 @@
-4082b0e7d3c042d49ef8987547b923051936956f
+55480b4d228986e502f4651f8e53a6f264a1858e