[ci skip] Update actions/github-script action to v9 (#53)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/github-script](https://git.ryujinx.app/actions/github-script) | action | major | `v6` → `v9` |

---

### Release Notes

<details>
<summary>actions/github-script (actions/github-script)</summary>

### [`v9.0.0`](https://git.ryujinx.app/actions/github-script/compare/v9...v9)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v9...v9)

### [`v9`](https://git.ryujinx.app/actions/github-script/compare/v8...v9)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v8...v9)

### [`v8.0.0`](https://git.ryujinx.app/actions/github-script/compare/v8...v8)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v8...v8)

### [`v8`](https://git.ryujinx.app/actions/github-script/compare/v7.1.0...v8)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v7.1.0...v8)

### [`v7.1.0`](https://git.ryujinx.app/actions/github-script/compare/v7.0.1...v7.1.0)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v7.0.1...v7.1.0)

### [`v7.0.1`](https://git.ryujinx.app/actions/github-script/compare/v7...v7.0.1)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v7...v7.0.1)

### [`v7.0.0`](https://git.ryujinx.app/actions/github-script/compare/v7...v7)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v7...v7)

### [`v7`](https://git.ryujinx.app/actions/github-script/compare/v6.4.1...v7)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v6.4.1...v7)

### [`v6.4.1`](https://git.ryujinx.app/actions/github-script/compare/v6.4.0...v6.4.1)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v6.4.0...v6.4.1)

### [`v6.4.0`](https://git.ryujinx.app/actions/github-script/compare/v6.3.3...v6.4.0)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v6.3.3...v6.4.0)

### [`v6.3.3`](https://git.ryujinx.app/actions/github-script/compare/v6.3.2...v6.3.3)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v6.3.2...v6.3.3)

### [`v6.3.2`](https://git.ryujinx.app/actions/github-script/compare/v6.3.1...v6.3.2)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v6.3.1...v6.3.2)

### [`v6.3.1`](https://git.ryujinx.app/actions/github-script/compare/v6.3.0...v6.3.1)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v6.3.0...v6.3.1)

### [`v6.3.0`](https://git.ryujinx.app/actions/github-script/compare/v6.2.0...v6.3.0)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v6.2.0...v6.3.0)

### [`v6.2.0`](https://git.ryujinx.app/actions/github-script/compare/v6.1.1...v6.2.0)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v6.1.1...v6.2.0)

### [`v6.1.1`](https://git.ryujinx.app/actions/github-script/compare/v6.1.0...v6.1.1)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v6.1.0...v6.1.1)

### [`v6.1.0`](https://git.ryujinx.app/actions/github-script/compare/v6...v6.1.0)

[Compare Source](https://git.ryujinx.app/actions/github-script/compare/v6...v6.1.0)

</details>

Reviewed-on: https://git.ryujinx.app/projects/Ryubing/pulls/53

.forgejo/workflows/unused/nightly_pr_comment.yml

@@ -10,7 +10,7 @@ jobs:
     if: github.event.workflow_run.event == 'pull_request' && github.event.workflow_run.conclusion == 'success'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/github-script@v6
+      - uses: actions/github-script@v9
         with:
           script: |
             const {owner, repo} = context.repo;