chore(deps): bump remark-gfm from 3.0.1 to 4.0.0

Bumps [remark-gfm](https://github.com/remarkjs/remark-gfm) from 3.0.1 to 4.0.0.
- [Release notes](https://github.com/remarkjs/remark-gfm/releases)
- [Commits](remarkjs/remark-gfm@3.0.1...4.0.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -41,7 +41,7 @@
     "rehype-highlight": "^6.0.0",
     "rehype-katex": "^6.0.3",
     "remark-breaks": "^3.0.2",
-    "remark-gfm": "^3.0.1",
+    "remark-gfm": "^4.0.0",
     "remark-math": "^5.1.1",
     "sass": "^1.59.2",
     "spark-md5": "^3.0.2",