chore: update mermaid (#13510)

https://github.com/toeverything/AFFiNE/issues/13509

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Chores**
  * Upgraded Mermaid dependency to v11.1.0 in the frontend core package.

* **Impact**
* Improved diagram rendering and compatibility with newer Mermaid
syntax.
* Potential performance and security improvements from upstream updates.
  * No UI changes expected; existing diagrams should continue to work.
  * Please verify critical diagram views for any rendering differences.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

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Co-authored-by: L-Sun <zover.v@gmail.com>
Co-authored-by: DarkSky <25152247+darkskygit@users.noreply.github.com>

packages/frontend/core/package.json

@@ -74,7 +74,7 @@
     "lit": "^3.2.1",
     "lodash-es": "^4.17.21",
     "lottie-react": "^2.4.0",
-    "mermaid": "^10.9.1",
+    "mermaid": "^11.1.0",
     "mp4-muxer": "^5.2.1",
     "nanoid": "^5.0.9",
     "next-themes": "^0.4.4",