Bump jwt from 2.3.0 to 2.4.1

Bumps [jwt](https://github.com/jwt/ruby-jwt) from 2.3.0 to 2.4.1.
- [Release notes](https://github.com/jwt/ruby-jwt/releases)
- [Changelog](https://github.com/jwt/ruby-jwt/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jwt/ruby-jwt/compare/v2.3.0...v2.4.1)

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

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

Gemfile.lock

@@ -351,7 +351,7 @@ GEM
       rspec (>= 2.0, < 4.0)
     jsonapi-serializer (2.2.0)
       activesupport (>= 4.2)
-    jwt (2.3.0)
+    jwt (2.4.1)
     knapsack (4.0.0)
       rake
     launchy (2.5.0)