bump(deps): update dependency hastscript to v9 (#790)

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

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [hastscript](https://togithub.com/syntax-tree/hastscript) | [`^8.0.0`
-> `^9.0.0`](https://renovatebot.com/diffs/npm/hastscript/8.0.0/9.0.0) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/hastscript/9.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/hastscript/9.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/hastscript/8.0.0/9.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/hastscript/8.0.0/9.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>syntax-tree/hastscript (hastscript)</summary>

###
[`v9.0.0`](https://togithub.com/syntax-tree/hastscript/releases/tag/9.0.0)

[Compare
Source](https://togithub.com/syntax-tree/hastscript/compare/8.0.0...9.0.0)

##### Breaking

-
[`8a5f97e`](https://togithub.com/syntax-tree/hastscript/commit/8a5f97e)
Add better custom element support by tightening overload detection
    (tiny chance of breaking, you’re most likely fine)

</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/fuxingloh/contented).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4xNzMuMCIsInVwZGF0ZWRJblZlciI6IjM3LjE3My4wIiwidGFyZ2V0QnJhbmNoIjoibWFpbiJ9-->

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

packages/contented-pipeline-md/package.json

@@ -43,7 +43,7 @@
     "@jsdevtools/rehype-toc": "^3.0.2",
     "@sindresorhus/slugify": "^2.2.1",
     "hast-util-to-string": "^3.0.0",
-    "hastscript": "^8.0.0",
+    "hastscript": "^9.0.0",
     "js-yaml": "^4.1.0",
     "lodash": "^4.17.21",
     "mdast-util-directive": "^3.0.0",