chore(deps): bump remark-frontmatter from 4.0.1 to 5.0.0

Bumps [remark-frontmatter](https://github.com/remarkjs/remark-frontmatter) from 4.0.1 to 5.0.0.
- [Release notes](https://github.com/remarkjs/remark-frontmatter/releases)
- [Commits](remarkjs/remark-frontmatter@4.0.1...5.0.0)

---
updated-dependencies:
- dependency-name: remark-frontmatter
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -135,7 +135,7 @@
     "remark-directive": "2.0.1",
     "remark-directive-rehype": "0.4.2",
     "remark-emoji": "4.0.0",
-    "remark-frontmatter": "4.0.1",
+    "remark-frontmatter": "5.0.0",
     "remark-gfm": "3.0.1",
     "remark-math": "5.1.1",
     "remark-parse": "10.0.2",