Update actionpack requirement from >= 6.1, < 8.0 to >= 6.1, < 9.0

Updates the requirements on [actionpack](https://github.com/rails/rails) to permit the latest version.
- [Release notes](https://github.com/rails/rails/releases)
- [Changelog](https://github.com/rails/rails/blob/v8.0.0/actionpack/CHANGELOG.md)
- [Commits](rails/rails@v6.1.0...v7.2.2)

---
updated-dependencies:
- dependency-name: actionpack
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

route_translator.gemspec

@@ -26,6 +26,6 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = '>= 2.7'
 
-  spec.add_dependency 'actionpack', '>= 6.1', '< 8.0'
+  spec.add_dependency 'actionpack', '>= 6.1', '< 9.0'
   spec.add_dependency 'activesupport', '>= 6.1', '< 8.0'
 end