fix(deps): update dependency remark-gfm to v4 (#5070)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [remark-gfm](https://togithub.com/remarkjs/remark-gfm) | [`^3.0.1` ->
`^4.0.0`](https://renovatebot.com/diffs/npm/remark-gfm/3.0.1/4.0.0) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/remark-gfm/4.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/remark-gfm/4.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/remark-gfm/3.0.1/4.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/remark-gfm/3.0.1/4.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>remarkjs/remark-gfm (remark-gfm)</summary>

###
[`v4.0.0`](https://togithub.com/remarkjs/remark-gfm/releases/tag/4.0.0)

[Compare
Source](https://togithub.com/remarkjs/remark-gfm/compare/3.0.1...4.0.0)

##### Change

- [`b8cc334`](https://togithub.com/remarkjs/remark-gfm/commit/b8cc334)
Update `@types/mdast`, `unified`, utilities
    **migrate**: update too
- [`9eb0f54`](https://togithub.com/remarkjs/remark-gfm/commit/9eb0f54)
Change to use `exports`
    **migrate**: don’t use private APIs
- [`5715c93`](https://togithub.com/remarkjs/remark-gfm/commit/5715c93)
Change to require Node.js 16
    **migrate**: update too

**Full Changelog**:
remarkjs/remark-gfm@3.0.1...4.0.0

</details>

---

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package.json

@@ -42,7 +42,7 @@
     "@ui5/webcomponents-icons": "1.17.0",
     "react": "18.2.0",
     "react-dom": "18.2.0",
-    "remark-gfm": "^3.0.1",
+    "remark-gfm": "^4.0.0",
     "tocbot": "^4.12.0"
   },
   "devDependencies": {