chore(deps): update github artifact actions (major) (#1339)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[actions/download-artifact](https://redirect.github.com/actions/download-artifact)
| action | major | `v5.0.0` -> `v6.0.0` |
|
[actions/upload-artifact](https://redirect.github.com/actions/upload-artifact)
| action | major | `v4.6.2` -> `v5.0.0` |

---

### Release Notes

<details>
<summary>actions/download-artifact (actions/download-artifact)</summary>

###
[`v6.0.0`](https://redirect.github.com/actions/download-artifact/releases/tag/v6.0.0)

[Compare
Source](https://redirect.github.com/actions/download-artifact/compare/v5.0.0...v6.0.0)

#### What's Changed

**BREAKING CHANGE:** this update supports Node `v24.x`. This is not a
breaking change per-se but we're treating it as such.

- Update README for download-artifact v5 changes by
[@&#8203;yacaovsnc](https://redirect.github.com/yacaovsnc) in
[#&#8203;417](https://redirect.github.com/actions/download-artifact/pull/417)
- Update README with artifact extraction details by
[@&#8203;yacaovsnc](https://redirect.github.com/yacaovsnc) in
[#&#8203;424](https://redirect.github.com/actions/download-artifact/pull/424)
- Readme: spell out the first use of GHES by
[@&#8203;danwkennedy](https://redirect.github.com/danwkennedy) in
[#&#8203;431](https://redirect.github.com/actions/download-artifact/pull/431)
- Bump `@actions/artifact` to `v4.0.0`
- Prepare `v6.0.0` by
[@&#8203;danwkennedy](https://redirect.github.com/danwkennedy) in
[#&#8203;438](https://redirect.github.com/actions/download-artifact/pull/438)

#### New Contributors

- [@&#8203;danwkennedy](https://redirect.github.com/danwkennedy) made
their first contribution in
[#&#8203;431](https://redirect.github.com/actions/download-artifact/pull/431)

**Full Changelog**:
<actions/download-artifact@v5...v6.0.0>

</details>

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

###
[`v5.0.0`](https://redirect.github.com/actions/upload-artifact/compare/v4.6.2...v5.0.0)

[Compare
Source](https://redirect.github.com/actions/upload-artifact/compare/v4.6.2...v5.0.0)

</details>

---

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Automerge - At any time (no schedule defined).

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are satisfied.

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rebase/retry checkbox.

👻 **Immortal**: This PR will be recreated if closed unmerged. Get
[config
help](https://redirect.github.com/renovatebot/renovate/discussions) if
that's undesired.

---

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

---

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.github/workflows/checks.yml

@@ -60,7 +60,7 @@ jobs:
         if: matrix.os == 'ubuntu-latest'
 
       - name: Store coverage report
-        uses: actions/upload-artifact@v4.6.2
+        uses: actions/upload-artifact@v5.0.0
         if: matrix.os == 'ubuntu-latest'
         with:
           name: coverage-${{ matrix.python }}
@@ -114,7 +114,7 @@ jobs:
         with:
           python-version: "3.12"
       - name: Download coverage reports
-        uses: actions/download-artifact@v5.0.0
+        uses: actions/download-artifact@v6.0.0
         with:
           merge-multiple: true
 
@@ -139,7 +139,7 @@ jobs:
           .venv/bin/python -m coverage report --fail-under=100
 
       - name: Upload HTML report if check failed.
-        uses: actions/upload-artifact@v4.6.2
+        uses: actions/upload-artifact@v5.0.0
         with:
           name: html-report
           path: htmlcov