chore: bump up @blocksuite/icons version to v2.1.68 (#8459)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [@blocksuite/icons](https://redirect.github.com/toeverything/icons) | [`2.1.67` -> `2.1.68`](https://renovatebot.com/diffs/npm/@blocksuite%2ficons/2.1.67/2.1.68) | [![age](https://developer.mend.io/api/mc/badges/age/npm/@blocksuite%2ficons/2.1.68?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@blocksuite%2ficons/2.1.68?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@blocksuite%2ficons/2.1.67/2.1.68?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@blocksuite%2ficons/2.1.67/2.1.68?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>toeverything/icons (@&#8203;blocksuite/icons)</summary>

### [`v2.1.68`](4bdeb1d0ae...10046ca695)

[Compare Source](4bdeb1d0ae...10046ca695)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about these updates again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR was generated by [Mend Renovate](https://mend.io/renovate/). View the [repository job log](https://developer.mend.io/github/toeverything/AFFiNE).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOC45Ny4wIiwidXBkYXRlZEluVmVyIjoiMzguMTE1LjEiLCJ0YXJnZXRCcmFuY2giOiJjYW5hcnkiLCJsYWJlbHMiOlsiZGVwZW5kZW5jaWVzIl19-->

packages/frontend/core/package.json

@@ -17,7 +17,7 @@
     "@affine/templates": "workspace:*",
     "@affine/track": "workspace:*",
     "@blocksuite/affine": "0.17.18",
-    "@blocksuite/icons": "2.1.67",
+    "@blocksuite/icons": "2.1.68",
     "@dnd-kit/core": "^6.1.0",
     "@dnd-kit/modifiers": "^7.0.0",
     "@dnd-kit/sortable": "^8.0.0",