Bump dotenv from 2.8.1 to 3.1.0

Bumps [dotenv](https://github.com/bkeepers/dotenv) from 2.8.1 to 3.1.0.
- [Release notes](https://github.com/bkeepers/dotenv/releases)
- [Changelog](https://github.com/bkeepers/dotenv/blob/main/Changelog.md)
- [Commits](bkeepers/dotenv@v2.8.1...v3.1.0)

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

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

Gemfile.lock

@@ -37,7 +37,7 @@ GEM
     diff-lcs (1.5.0)
     docile (1.4.0)
     domain_name (0.6.20240107)
-    dotenv (2.8.1)
+    dotenv (3.1.0)
     drb (2.2.0)
       ruby2_keywords
     ffaker (2.23.0)