chore(deps-dev): bump mkdirp from 1.0.4 to 2.1.1

Bumps [mkdirp](https://github.com/isaacs/node-mkdirp) from 1.0.4 to 2.1.1.
- [Release notes](https://github.com/isaacs/node-mkdirp/releases)
- [Changelog](https://github.com/isaacs/node-mkdirp/blob/main/CHANGELOG.md)
- [Commits](https://github.com/isaacs/node-mkdirp/compare/v1.0.4...v2.1.1)

---
updated-dependencies:
- dependency-name: mkdirp
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -21,7 +21,7 @@
     "browser-sync": "^2.27.7",
     "dependency-check": "^4.1.0",
     "gh-release": "^7.0.0",
-    "mkdirp": "^1.0.4",
+    "mkdirp": "^2.1.1",
     "npm-run-all2": "^6.0.0",
     "standard": "^17.0.0"
   },