chore(deps): update codecov/codecov-action action to v3.1.6 (#226)

[![Mend
Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [codecov/codecov-action](https://togithub.com/codecov/codecov-action)
| action | patch | `v3.1.5` -> `v3.1.6` |

---

### Release Notes

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

###
[`v3.1.6`](https://togithub.com/codecov/codecov-action/releases/tag/v3.1.6)

[Compare
Source](https://togithub.com/codecov/codecov-action/compare/v3.1.5...v3.1.6)

**Full Changelog**:
codecov/codecov-action@v3.1.5...v3.1.6

</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 has been generated by [Mend
Renovate](https://www.mend.io/free-developer-tools/renovate/). View
repository job log
[here](https://developer.mend.io/github/open-feature/dotnet-sdk).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4xNTMuMiIsInVwZGF0ZWRJblZlciI6IjM3LjIyNy4yIiwidGFyZ2V0QnJhbmNoIjoibWFpbiJ9-->

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

.github/workflows/code-coverage.yml

@@ -36,7 +36,7 @@ jobs:
     - name: Run Test
       run: dotnet test --verbosity normal /p:CollectCoverage=true /p:CoverletOutputFormat=opencover
 
-    - uses: codecov/[email protected].5
+    - uses: codecov/[email protected].6
       with:
         name: Code Coverage for ${{ matrix.os }}
         fail_ci_if_error: true