Update transformers to catch URI::InvalidError

Author: getty104

lib/qiita/markdown/transformers/filter_iframe.rb

@@ -45,7 +45,7 @@ def host_of(url)
             scheme = URI.parse(url).scheme
             Addressable::URI.parse(url).host if ["http", "https"].include? scheme
           end
-        rescue Addressable::URI::InvalidURIError
+        rescue Addressable::URI::InvalidURIError, URI::InvalidURIError
           nil
         end
       end

lib/qiita/markdown/transformers/filter_script.rb

@@ -47,7 +47,7 @@ def host_of(url)
             scheme = URI.parse(url).scheme
             Addressable::URI.parse(url).host if ["http", "https"].include? scheme
           end
-        rescue Addressable::URI::InvalidURIError
+        rescue Addressable::URI::InvalidURIError, URI::InvalidURIError
           nil
         end
       end