Fix author substitute in Universita Cattolica

https://forums.zotero.org/discussion/84178/a-a-a-instead-of-dashes#latest

Author: adam3smith

universita-cattolica-del-sacro-cuore.csl

@@ -544,7 +544,7 @@
       </choose>
     </layout>
   </citation>
-  <bibliography hanging-indent="true" et-al-min="9" et-al-use-first="7" subsequent-author-substitute="———" entry-spacing="0">
+  <bibliography hanging-indent="true" et-al-min="9" et-al-use-first="7" subsequent-author-substitute="&#8212;&#8212;&#8212;" entry-spacing="0">
     <sort>
       <key macro="sort-key"/>
       <key variable="issued"/>