fix(isc): strip both trailing " and ' from multi-line YAML notes

Result: 276/289 deep equivalent

Author: ronaldtse

lib/interscript/isc/document_builder.rb

@@ -149,14 +149,13 @@ def extract_metadata(arr)
             Array(field[:notes]).each do |n|
               note_val = n.is_a?(Hash) ? n[:note] : n
               note_text = normalize_heredoc(unquote(note_val).to_s)
-              note_text = note_text.sub(/"\z/, "")
+              note_text = note_text.sub(/["']\z/, "")
               h[:notes] << note_text
             end
           when field.key?(:note)
             h[:notes] ||= []
             note_text = normalize_heredoc(unquote(field[:note]).to_s)
-            # Strip trailing " leaked from multi-line YAML quoted items
-            note_text = note_text.sub(/"\z/, "")
+            note_text = note_text.sub(/["']\z/, "")
             h[:notes] << note_text
           when field.key?(:provenance)
             h[:provenance] ||= []