chore(deps): update lycheeverse/lychee-action action to v2.6.0 (#7239)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[lycheeverse/lychee-action](https://redirect.github.com/lycheeverse/lychee-action)
| action | minor | `v2.5.0` -> `v2.6.0` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>lycheeverse/lychee-action (lycheeverse/lychee-action)</summary>

###
[`v2.6.0`](https://redirect.github.com/lycheeverse/lychee-action/releases/tag/v2.6.0):
Version 2.6.0

[Compare
Source](https://redirect.github.com/lycheeverse/lychee-action/compare/v2.5.0...v2.6.0)

##### What's Changed

- Update lychee version to v0.20.0 by
[@&#8203;github-actions](https://redirect.github.com/github-actions)\[bot]
in[https://github.com/lycheeverse/lychee-action/pull/304](https://redirect.github.com/lycheeverse/lychee-action/pull/304)4
- Bump actions/checkout from 4 to 5 by
[@&#8203;dependabot](https://redirect.github.com/dependabot)\[bot]
in[https://github.com/lycheeverse/lychee-action/pull/303](https://redirect.github.com/lycheeverse/lychee-action/pull/303)3

**Full Changelog**:
https://github.com/lycheeverse/lychee-action/compare/v2...v2.6.0

</details>

---

### Configuration

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Automerge - At any time (no schedule defined).

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

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the
rebase/retry checkbox.

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

---

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

---

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.github/workflows/links-fail-fast.yml

@@ -48,7 +48,7 @@ jobs:
           restore-keys: cache-lychee-
 
       - name: Link Checker
-        uses: lycheeverse/lychee-action@5c4ee84814c983aa7164eaee476f014e53ff3963 # v2.5.0
+        uses: lycheeverse/lychee-action@01a5c94d8e012550040658854b90a7a7301e75ca # v2.6.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:

.github/workflows/links.yml

@@ -30,7 +30,7 @@ jobs:
 
     - name: Link Checker
       id: lychee
-      uses: lycheeverse/lychee-action@5c4ee84814c983aa7164eaee476f014e53ff3963 # v2.5.0
+      uses: lycheeverse/lychee-action@01a5c94d8e012550040658854b90a7a7301e75ca # v2.6.0
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with: