build(deps): bump dotenv from 16.0.3 to 16.4.7

Bumps [dotenv](https://github.com/motdotla/dotenv) from 16.0.3 to 16.4.7.
- [Changelog](https://github.com/motdotla/dotenv/blob/master/CHANGELOG.md)
- [Commits](motdotla/dotenv@v16.0.3...v16.4.7)

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

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

package.json

@@ -14,7 +14,7 @@
     "babel-plugin-styled-components": "^2.0.7",
     "babel-runtime": "^6.26.0",
     "date-fns": "^2.29.3",
-    "dotenv": "^16.0.3",
+    "dotenv": "^16.4.7",
     "gatsby": "^3.14.6",
     "gatsby-plugin-manifest": "^3.14.0",
     "gatsby-plugin-react-helmet": "^4.14.0",

yarn.lock

@@ -4381,10 +4381,10 @@ dot-prop@^5.2.0:
   dependencies:
     is-obj "^2.0.0"
 
-dotenv@^16.0.3:
-  version "16.0.3"
-  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-16.0.3.tgz#115aec42bac5053db3c456db30cc243a5a836a07"
-  integrity sha512-7GO6HghkA5fYG9TYnNxi14/7K9f5occMlp3zXAuSxn7CKCxt9xbNWG7yF8hTCSUchlfWSe3uLmlPfigevRItzQ==
+dotenv@^16.4.7:
+  version "16.4.7"
+  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-16.4.7.tgz#0e20c5b82950140aa99be360a8a5f52335f53c26"
+  integrity sha512-47qPchRCykZC03FhkYAhrvwU4xDBFIj1QPqaarj6mdM/hgUzfPHcpkHJOn3mJAufFeeAxAzeGsr5X0M4k6fLZQ==
 
 dotenv@^8.2.0:
   version "8.6.0"