chore(deps): update actions/upload-artifact action to v4 (#278)

This PR contains the following updates:

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

---

### Release Notes

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

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

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

</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**: Never, 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/ci-heavy.yml

@@ -89,7 +89,7 @@ jobs:
           INSTA_UPDATE: new
       - name: Upload snapshots of failed tests
         if: ${{ failure() && steps.run_tests.outcome == 'failure' }}
-        uses: actions/upload-artifact@ff15f0306b3f739f7b6fd43fb5d26cd321bd4de5 # v3
+        uses: actions/upload-artifact@50769540e7f4bd5e21e526ee35c689e35e0d6874 # v4
         with:
           name: failed-snapshots-${{ matrix.job.os }}
           path: "**/snapshots/*.snap.new"

.github/workflows/ci.yml

@@ -75,7 +75,7 @@ jobs:
           INSTA_UPDATE: new
       - name: Upload snapshots of failed tests
         if: ${{ failure() && steps.run_tests.outcome == 'failure' }}
-        uses: actions/upload-artifact@ff15f0306b3f739f7b6fd43fb5d26cd321bd4de5 # v3
+        uses: actions/upload-artifact@50769540e7f4bd5e21e526ee35c689e35e0d6874 # v4
         with:
           name: failed-snapshots-${{ matrix.job.os }}
           path: "**/snapshots/*.snap.new"