Bump dotenv from 8.6.0 to 16.0.3

Bumps [dotenv](https://github.com/motdotla/dotenv) from 8.6.0 to 16.0.3.
- [Release notes](https://github.com/motdotla/dotenv/releases)
- [Changelog](https://github.com/motdotla/dotenv/blob/master/CHANGELOG.md)
- [Commits](motdotla/dotenv@v8.6.0...v16.0.3)

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

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

package.json

@@ -97,7 +97,7 @@
     "chai": "^4.3.4",
     "del": "^6.0.0",
     "dockerlint": "^0.3.9",
-    "dotenv": "^8.2.0",
+    "dotenv": "^16.0.3",
     "eslint": "^7.22.0",
     "gulp": "^4.0.2",
     "gulp-if": "^3.0.0",