Pin dependency @codemirror/state to 6.6.0 (TryGhost#27358)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [@codemirror/state](https://redirect.github.com/codemirror/state) |
devDependencies | pin | [`^6.6.0` →
`6.6.0`](https://renovatebot.com/diffs/npm/@codemirror%2fstate/6.6.0/6.6.0)
|

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apps/admin-x-design-system/package.json

@@ -26,7 +26,7 @@
     ],
     "devDependencies": {
         "@codemirror/lang-html": "6.4.11",
-        "@codemirror/state": "^6.6.0",
+        "@codemirror/state": "6.6.0",
         "@dnd-kit/utilities": "^3.2.2",
         "@radix-ui/react-tooltip": "1.2.8",
         "@storybook/addon-essentials": "8.6.14",