Bump rack-test from 2.0.2 to 2.1.0

Bumps [rack-test](https://github.com/rack/rack-test) from 2.0.2 to 2.1.0.
- [Release notes](https://github.com/rack/rack-test/releases)
- [Changelog](https://github.com/rack/rack-test/blob/main/History.md)
- [Commits](https://github.com/rack/rack-test/compare/v2.0.2...v2.1.0)

---
updated-dependencies:
- dependency-name: rack-test
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Gemfile

@@ -122,7 +122,7 @@ group :test do
   gem 'simplecov', '~> 0.21', require: false
   gem 'webmock', '~> 3.18'
   gem 'rspec_junit_formatter', '~> 0.6'
-  gem 'rack-test', '~> 2.0'
+  gem 'rack-test', '~> 2.1'
 end
 
 group :development do

Gemfile.lock

@@ -496,7 +496,7 @@ GEM
       rack (>= 2.1.0)
     rack-proxy (0.7.0)
       rack
-    rack-test (2.0.2)
+    rack-test (2.1.0)
       rack (>= 1.3)
     rails (6.1.7)
       actioncable (= 6.1.7)
@@ -816,7 +816,7 @@ DEPENDENCIES
   rack (~> 2.2.4)
   rack-attack (~> 6.6)
   rack-cors (~> 1.1)
-  rack-test (~> 2.0)
+  rack-test (~> 2.1)
   rails (~> 6.1.7)
   rails-controller-testing (~> 1.0)
   rails-i18n (~> 6.0)