chore(deps): update actions/upload-pages-artifact action to v4 (apify#1829)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[actions/upload-pages-artifact](https://redirect.github.com/actions/upload-pages-artifact)
| action | major | `v3` -> `v4` |

---

### Release Notes

<details>
<summary>actions/upload-pages-artifact
(actions/upload-pages-artifact)</summary>

###
[`v4`](https://redirect.github.com/actions/upload-pages-artifact/compare/v3...v4)

[Compare
Source](https://redirect.github.com/actions/upload-pages-artifact/compare/v3...v4)

</details>

---

### Configuration

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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 this update
again.

---

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

---

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.github/workflows/docs.yaml

@@ -44,7 +44,7 @@ jobs:
                 uses: actions/configure-pages@v5
 
             -   name: Upload GitHub Pages artifact
-                uses: actions/upload-pages-artifact@v3
+                uses: actions/upload-pages-artifact@v4
                 with:
                     path: ./build