chore(deps): update actions/stale action to v8 (#49)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/stale](https://github.com/actions/stale) | action | major |
`v7.0.0` -> `v8.0.0` |

---

### Release Notes

<details>
<summary>actions/stale (actions/stale)</summary>

### [`v8.0.0`](https://github.com/actions/stale/releases/tag/v8.0.0)

[Compare
Source](https://github.com/actions/stale/compare/v7.0.0...v8.0.0)

:warning: This version contains breaking changes :warning:

#### What's Changed

- New option labels-to-remove-when-stale enables users to specify list
of comma delimited labels that will be removed when the issue or PR
becomes stale by [@&#8203;panticmilos](https://github.com/panticmilos)
[https://github.com/actions/stale/issues/770](https://github.com/actions/stale/issues/770)
- Skip deleting the branch in the upstream of a forked repo by
[@&#8203;dsame](https://github.com/dsame)
[https://github.com/actions/stale/pull/913](https://github.com/actions/stale/pull/913)
- abort the build on the error by
[@&#8203;dsame](https://github.com/dsame) in
[https://github.com/actions/stale/pull/935](https://github.com/actions/stale/pull/935)

#### Breaking Changes

- In this release we prevent scenarios when the build is not interrupted
on some exceptions, which led to successful builds when they are
supposed to fail

#### Example

```yaml
name: 'Remove labels when the issue or PR becomes stale'
on:
  schedule:
    - cron: '30 1 * * *'

permissions:
    pull-requests: write

jobs:
  stale:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/stale@v8
        with:
          labels-to-remove-when-stale: 'label1,label2'
```

</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 is behind base branch, 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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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/stale.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       # yamllint disable-line rule:comments
-      - uses: actions/stale@6f05e4244c9a0b2ed3401882b05d701dd0a7289b # v7.0.0
+      - uses: actions/stale@1160a2240286f5da8ec72b1c0816ce2481aabf84 # v8.0.0
         with:
           # yamllint disable rule:line-length
           stale-issue-message: "This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 10 days."