build(deps): bump remark-lint-fenced-code-flag from 3.1.2 to 4.0.0

Bumps [remark-lint-fenced-code-flag](https://github.com/remarkjs/remark-lint) from 3.1.2 to 4.0.0.
- [Release notes](https://github.com/remarkjs/remark-lint/releases)
- [Changelog](https://github.com/remarkjs/remark-lint/blob/4.0.0/history.md)
- [Commits](https://github.com/remarkjs/remark-lint/commits/4.0.0)

---
updated-dependencies:
- dependency-name: remark-lint-fenced-code-flag
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -42,7 +42,7 @@
     "remark-lint-checkbox-content-indent": "^4.1.2",
     "remark-lint-code-block-style": "^3.1.2",
     "remark-lint-definition-spacing": "^3.1.2",
-    "remark-lint-fenced-code-flag": "^3.1.2",
+    "remark-lint-fenced-code-flag": "^4.0.0",
     "remark-lint-fenced-code-marker": "^4.0.0",
     "remark-lint-file-extension": "^2.1.2",
     "remark-lint-final-definition": "^3.1.2",