Bump remark-lint-no-emphasis-as-heading from 3.1.2 to 4.0.0

Bumps [remark-lint-no-emphasis-as-heading](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-no-emphasis-as-heading
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -52,7 +52,7 @@
     "remark-lint-no-consecutive-blank-lines": "^4.1.3",
     "remark-lint-no-duplicate-definitions": "^3.1.2",
     "remark-lint-no-duplicate-headings": "^3.1.2",
-    "remark-lint-no-emphasis-as-heading": "^3.1.2",
+    "remark-lint-no-emphasis-as-heading": "^4.0.0",
     "remark-lint-no-empty-sections": "^4.0.0",
     "remark-lint-no-empty-url": "^3.1.2",
     "remark-lint-no-file-name-articles": "^3.0.0",