chore: Update kskitek/coverdiff action to v0.6.0 (#26)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [kskitek/coverdiff](https://redirect.github.com/kskitek/coverdiff) |
action | minor | `v0.5.0` -> `v0.6.0` |

---

### Release Notes

<details>
<summary>kskitek/coverdiff (kskitek/coverdiff)</summary>

###
[`v0.6.0`](https://redirect.github.com/kskitek/coverdiff/releases/tag/v0.6.0)

[Compare
Source](https://redirect.github.com/kskitek/coverdiff/compare/v0.5.0...v0.6.0)

#### What's Changed

- Fix: Cover more cases by
[@&#8203;kskitek](https://redirect.github.com/kskitek) in
[https://github.com/kskitek/coverdiff/pull/12](https://redirect.github.com/kskitek/coverdiff/pull/12)
- chore: Update Checkout action by
[@&#8203;kskitek](https://redirect.github.com/kskitek) in
[https://github.com/kskitek/coverdiff/pull/15](https://redirect.github.com/kskitek/coverdiff/pull/15)

**Full Changelog**:
kskitek/coverdiff@v0.5.0...v0.6.0

</details>

---

### Configuration

📅 **Schedule**: Branch creation - "after 10pm every weekday,before 5am
every weekday,every weekend" (UTC), Automerge - At any time (no schedule
defined).

🚦 **Automerge**: Enabled.

♻ **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

---

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View the [repository job
log](https://developer.mend.io/github/nobl9/govy).

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.github/workflows/coverage-pr-report.yml

@@ -15,6 +15,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Test coverage diff
-      uses: kskitek/coverdiff@v0.5.0
+      uses: kskitek/coverdiff@v0.6.0
       env:
         GITHUB_TOKEN: ${{ secrets.GO_COVERAGE_TOKEN }}