chore(deps): update actions/upload-artifact action to v4.3.0 (#946)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[actions/upload-artifact](https://togithub.com/actions/upload-artifact)
| action | minor | `v4.2.0` -> `v4.3.0` |

---

### Release Notes

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

###
[`v4.3.0`](https://togithub.com/actions/upload-artifact/releases/tag/v4.3.0)

[Compare
Source](https://togithub.com/actions/upload-artifact/compare/v4.2.0...v4.3.0)

##### What's Changed

- Reorganize upload code in prep for merge logic & add more tests by
[@&#8203;robherley](https://togithub.com/robherley) in
[https://github.com/actions/upload-artifact/pull/504](https://togithub.com/actions/upload-artifact/pull/504)
- Add sub-action to merge artifacts by
[@&#8203;robherley](https://togithub.com/robherley) in
[https://github.com/actions/upload-artifact/pull/505](https://togithub.com/actions/upload-artifact/pull/505)

**Full Changelog**:
actions/upload-artifact@v4...v4.3.0

</details>

---

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Diff for: .github/workflows/checks.yml

@@ -67,7 +67,7 @@ jobs:
         if: matrix.os == 'ubuntu-latest'
 
       - name: Store coverage report
-        uses: actions/upload-artifact@v4.2.0
+        uses: actions/upload-artifact@v4.3.0
         if: matrix.os == 'ubuntu-latest'
         with:
           name: coverage-${{ matrix.python }}
@@ -109,7 +109,7 @@ jobs:
           .venv/bin/python -m coverage report --fail-under=100          
 
       - name: Upload HTML report if check failed.
-        uses: actions/upload-artifact@v4.2.0
+        uses: actions/upload-artifact@v4.3.0
         with:
           name: html-report
           path: htmlcov