Add Ruby 3.4 support (#258)

* Add Ruby 3.4's Hash#inspect symbol change

* Add Ruby 3.4 to CI matrix

.github/workflows/ci.yml

@@ -16,6 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
+          - "3.4"
           - "3.3"
           - "3.2"
           - "3.1"

spec/integration/template_rendering/locals_spec.rb

@@ -12,6 +12,10 @@
       expose :text, decorate: false
     end.new
 
-    expect(view.(text: "Hello").to_s).to eq %{Locals: {:text=>"Hello"}}
+    if RUBY_VERSION < "3.4"
+      expect(view.call(text: "Hello").to_s).to eq %{Locals: {:text=>"Hello"}}
+    else
+      expect(view.call(text: "Hello").to_s).to eq %{Locals: {text: "Hello"}}
+    end
   end
 end