Update oven-sh/setup-bun action to v2 (#6)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [oven-sh/setup-bun](https://github.com/oven-sh/setup-bun) | action | major | `v1` -> `v2` |

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### Release Notes

<details>
<summary>oven-sh/setup-bun (oven-sh/setup-bun)</summary>

### [`v2`](https://github.com/oven-sh/setup-bun/releases/tag/v2)

[Compare Source](https://github.com/oven-sh/setup-bun/compare/v1...v2)

`oven-sh/setup-bun` is the github action for setting up Bun.

This release introduces support for the `bun-version-file` option, fixes [#&#8203;79](https://github.com/oven-sh/setup-bun/issues/79), and adds bun paths & urls to the output ([#&#8203;81](https://github.com/oven-sh/setup-bun/issues/81))

For more information, see [#&#8203;76](https://github.com/oven-sh/setup-bun/pull/76) by [@&#8203;adeherysh](https://github.com/adeherysh) and [#&#8203;80](https://github.com/oven-sh/setup-bun/pull/80) by [@&#8203;xHyroM](https://github.com/xHyroM) 🎉

**Full Changelog**: <https://github.com/oven-sh/setup-bun/compare/v1...v2>

</details>

---

### Configuration

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

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

---

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---

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Reviewed-on: https://git.valverde.cloud/Thilawyn/website/pulls/6
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Co-committed-by: Renovate Bot <renovate-bot@valverde.cloud>

.gitea/workflows/lint.yaml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Set up Bun
-        uses: oven-sh/setup-bun@v1
+        uses: oven-sh/setup-bun@v2
       - name: Set up Node
         uses: actions/setup-node@v5
         with: