deps: Force html-proofer to 3.x

achow101 · achow101 · commit 6acd9df4ec04 · 2024-07-02T12:26:22.000-04:00
Debian uses html-proofer 3.x even though 5.x is out.
diff --git a/Gemfile b/Gemfile
@@ -14,5 +14,5 @@ group :development do
 end
 
 group :testing do
-  gem 'html-proofer'
+  gem 'html-proofer', "~> 3.19"
 end
