Bump next_rails from 1.3.0 to 1.4.0

Bumps [next_rails](https://github.com/fastruby/next_rails) from 1.3.0 to 1.4.0.
- [Release notes](https://github.com/fastruby/next_rails/releases)
- [Changelog](https://github.com/fastruby/next_rails/blob/main/CHANGELOG.md)
- [Commits](fastruby/next_rails@v1.3.0...v1.4.0)

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

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

Gemfile.lock

@@ -107,7 +107,6 @@ GEM
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
     coderay (1.1.3)
-    colorize (1.1.0)
     concurrent-ruby (1.3.4)
     connection_pool (2.4.1)
     crass (1.0.6)
@@ -270,8 +269,8 @@ GEM
     net-smtp (0.5.0)
       net-protocol
     netrc (0.11.0)
-    next_rails (1.3.0)
-      colorize (>= 0.8.1)
+    next_rails (1.4.0)
+      rainbow (>= 3)
     nio4r (2.7.3)
     nokogiri (1.16.7-x86_64-darwin)
       racc (~> 1.4)