Bump core dependencies

goru.gemspec

@@ -19,9 +19,9 @@ Gem::Specification.new do |spec|
   spec.files = Dir["CHANGELOG.md", "README.md", "LICENSE", "lib/**/*"]
   spec.require_path = "lib"
 
-  spec.add_dependency "core-extension", "~> 0.4"
-  spec.add_dependency "core-handler", "~> 0.1"
-  spec.add_dependency "core-global", "~> 0.2"
+  spec.add_dependency "core-extension", "~> 0.5"
+  spec.add_dependency "core-handler", "~> 0.2"
+  spec.add_dependency "core-global", "~> 0.3"
   spec.add_dependency "nio4r", "~> 2.5"
   spec.add_dependency "timers", "~> 4.3"
 end

lib/goru.rb

@@ -1,12 +1,12 @@
 # frozen_string_literal: true
 
-require "is/extension"
+require "core/extension"
 
 module Goru
   require_relative "goru/scheduler"
   require_relative "goru/version"
 
-  extend Is::Extension
+  extend Core::Extension
 
   def go(state = nil, io: nil, channel: nil, intent: nil, &block)
     Scheduler.go(state, io: io, channel: channel, intent: intent, &block)

lib/goru/routine.rb

@@ -1,12 +1,12 @@
 # frozen_string_literal: true
 
-require "is/handler"
+require "core/handler"
 
 module Goru
   # [public]
   #
   class Routine
-    include Is::Handler
+    include Core::Handler
 
     handle(StandardError) do |event:|
       if @debug

lib/goru/scheduler.rb

@@ -2,7 +2,7 @@
 
 require "etc"
 require "nio"
-require "is/global"
+require "core/global"
 
 require_relative "channel"
 require_relative "reactor"
@@ -16,7 +16,7 @@ module Goru
   # [public]
   #
   class Scheduler
-    include Is::Global
+    include Core::Global
 
     class << self
       # Prevent issues when including `Goru` at the toplevel.