Lock the ruby version number (#245, #247, #344)

Since version 3.0, Ruby has no `webrick` that Jekyll (<= 4.2) needs
2021-06-23 23:00:46 +08:00 · 2021-06-23 23:00:46 +08:00 · 885ed44646
parent d31e677ca0
commit 885ed44646
1 changed files with 2 additions and 0 deletions
--- a/jekyll-theme-chirpy.gemspec
+++ b/jekyll-theme-chirpy.gemspec
@ -23,6 +23,8 @@ Gem::Specification.new do |spec|
    "plugin_type"       => "theme"
  }

+  spec.required_ruby_version = [">= 2.4", "< 3.0"]
+
  spec.add_runtime_dependency "jekyll", "~> 4.1"
  spec.add_runtime_dependency "jekyll-paginate", "~> 1.1"
  spec.add_runtime_dependency "jekyll-redirect-from", "~> 0.16"