Bump mkdirp from 1.0.4 to 2.1.6 (#783)

Bumps [mkdirp](https://github.com/isaacs/node-mkdirp) from 1.0.4 to 2.1.6.
- [Release notes](https://github.com/isaacs/node-mkdirp/releases)
- [Changelog](https://github.com/isaacs/node-mkdirp/blob/main/CHANGELOG.md)
- [Commits](isaacs/node-mkdirp@v1.0.4...v2.1.6)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -44,7 +44,7 @@
     "eslint-plugin-import": "2.27.5",
     "geckodriver": "3.2.0",
     "nyc": "15.1.0",
-    "mkdirp": "1.0.4",
+    "mkdirp": "2.1.6",
     "mocha": "10.2.0",
     "portfinder": "1.0.32",
     "selenium-assistant": "5.4.0",