Update critical file(s) according to Chirpy v6.4.2

github-actions[bot] · github-actions[bot] · commit 8486ea4ae455 · 2024-01-13T14:04:21.000Z
diff --git a/Gemfile b/Gemfile
@@ -2,7 +2,7 @@
 
 source "https://rubygems.org"
 
-gem "jekyll-theme-chirpy", "~> 6.4", ">= 6.4.1"
+gem "jekyll-theme-chirpy", "~> 6.4", ">= 6.4.2"
 
 group :test do
   gem "html-proofer", "~> 4.4"
