Update codecov/codecov-action action to v5 (#469)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[codecov/codecov-action](https://redirect.github.com/codecov/codecov-action)
| action | major | `v4` -> `v5` |

---

### Release Notes

<details>
<summary>codecov/codecov-action (codecov/codecov-action)</summary>

###
[`v5`](https://redirect.github.com/codecov/codecov-action/compare/v4...v5)

[Compare
Source](https://redirect.github.com/codecov/codecov-action/compare/v4...v5)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At 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

---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/allenporter/pyrainbird).

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---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Allen Porter <[email protected]>

.github/workflows/test.yaml

@@ -33,7 +33,7 @@ jobs:
       - name: Test with pytest
         run: |
           pytest --cov=pyrainbird --cov-report=term-missing
-      - uses: codecov/codecov-action@v4
+      - uses: codecov/codecov-action@v5.0.1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           env_vars: OS,PYTHON