chore(cdn-example): update dependencies to latest versions (#4558)

Author: github-actions[bot]

examples/graphiql-cdn/index.html

@@ -48,10 +48,10 @@
     <script type="importmap">
       {
         "imports": {
-          "react": "https://esm.sh/react@19.2.8",
-          "react/": "https://esm.sh/react@19.2.8/",
-          "react-dom": "https://esm.sh/react-dom@19.2.8",
-          "react-dom/": "https://esm.sh/react-dom@19.2.8/",
+          "react": "https://esm.sh/react@19.3.0",
+          "react/": "https://esm.sh/react@19.3.0/",
+          "react-dom": "https://esm.sh/react-dom@19.3.0",
+          "react-dom/": "https://esm.sh/react-dom@19.3.0/",
           "graphiql": "https://esm.sh/graphiql@5.4.0?standalone&external=react,react-dom,@graphiql/react,graphql",
           "graphiql/": "https://esm.sh/graphiql@5.4.0/",
           "@graphiql/plugin-explorer": "https://esm.sh/@graphiql/plugin-explorer@5.1.5?standalone&external=react,@graphiql/react,graphql",
@@ -61,8 +61,8 @@
           "@emotion/is-prop-valid": "data:text/javascript,"
         },
         "integrity": {
-          "https://esm.sh/react@19.2.8": "sha384-ZLbEMZxxxJSWKr0slZZsXGR6UNzfnEk4+qYI9PLH9QSxvWWQjs3UgkzrGuo33roA",
-          "https://esm.sh/react-dom@19.2.8": "sha384-jssD0f2tUCDrNPAwM/2fFwybg7wF0K+9oVfFE0a7r0n7wb2UVP4/uYyWIZKGxG6L",
+          "https://esm.sh/react@19.3.0": "sha384-gq3XRS6InsfZ3Lv6d+6mBuySvNkEX/1Ciw3jSlg9gL82444AmhVcwtYbpJfKbDqf",
+          "https://esm.sh/react-dom@19.3.0": "sha384-xodfSorG86jrGERFAa4P/93Hfsvm7H8zpgSaybN6ruXaACScu/R7nOuoDgCfep8l",
           "https://esm.sh/graphiql@5.4.0": "sha384-moUMjxK/ZmHQE08otOtzYT/Zke32MqPb9l0uUXUdsf8aXl53LPYBciaAf9ON2nuR",
           "https://esm.sh/graphiql@5.4.0?standalone&external=react,react-dom,@graphiql/react,graphql": "sha384-P5rs3WtMR+YUHbk+eUuomiB3Grin+04e9jKjuOY5KMBdjnl/qOUaCALfnVqVpIL8",
           "https://esm.sh/@graphiql/plugin-explorer@5.1.5": "sha384-hIrTiRjlICooYpU/kh97YrhFmYbV5WhIa37reJgertKXzyaM6kzkJaDUlQWs9+vb",