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](https://github.com/motdotla/dotenv/compare/v8.6.0...v16.0.3)

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

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

package.json

@@ -33,7 +33,7 @@
     "compression": "^1.7.4",
     "cors": "^2.8.5",
     "debug": "^3.1.0",
-    "dotenv": "^8.1.0",
+    "dotenv": "^16.0.3",
     "eccrypto": "^1.1.6",
     "express": "^4.14.1",
     "express-session": "^1.17.1",