Bump remark-lint-maximum-heading-length from 1.0.4 to 2.0.0 (#1681)

Bumps [remark-lint-maximum-heading-length](https://github.com/remarkjs/remark-lint) from 1.0.4 to 2.0.0.
- [Release notes](https://github.com/remarkjs/remark-lint/releases)
- [Changelog](https://github.com/remarkjs/remark-lint/blob/2.0.0/history.md)
- [Commits](https://github.com/remarkjs/remark-lint/compare/ordered-list-marker-value@1.0.4...2.0.0)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

@@ -19,7 +19,7 @@
     "eslint-plugin-security": "^1.4.0",
     "remark-lint-emphasis-marker": "^1.0.3",
     "remark-lint-list-item-spacing": "^1.1.3",
-    "remark-lint-maximum-heading-length": "^1.0.3",
+    "remark-lint-maximum-heading-length": "^2.0.0",
     "remark-lint-maximum-line-length": "^1.2.1",
     "remark-lint-no-dead-urls": "^0.5.0",
     "remark-lint-no-file-name-irregular-characters": "^1.0.3",