Address gem build warning regarding activesupport declaration

Author: mokagio

Gemfile.lock

@@ -2,7 +2,7 @@ PATH
   remote: .
   specs:
     fastlane-plugin-wpmreleasetoolkit (14.1.0)
-      activesupport (>= 6.1.7.1)
+      activesupport (>= 6.1.7.1, < 8)
       buildkit (~> 1.5)
       chroma (= 0.2.0)
       diffy (~> 3.3)

fastlane-plugin-wpmreleasetoolkit.gemspec

@@ -26,7 +26,7 @@ Gem::Specification.new do |spec|
   # since this would cause a circular dependency
 
   # spec.add_dependency 'your-dependency', '~> 1.0.0'
-  spec.add_dependency 'activesupport', '>= 6.1.7.1' # Required for fastlane to not crash when importing this plugin
+  spec.add_dependency 'activesupport', '>= 6.1.7.1', '< 8' # Required for fastlane to not crash when importing this plugin
   spec.add_dependency 'buildkit', '~> 1.5'
   spec.add_dependency 'chroma', '0.2.0'
   spec.add_dependency 'diffy', '~> 3.3'