update fanycthm caching test

tests/environments/fancythm/test3.tex

@@ -1,12 +1,16 @@
 \documentclass{minimal}
 
-\usepackage[cache]{groupthm}
+\usepackage[cache version = 1]{fancythm}
 
-\usepackage{fancythm}
+\NewFancyTheorem{hello}
 
 \begin{document}
 
   \begin{abuse}
     
   \end{abuse}
+
+  \begin{hello}
+    
+  \end{hello}
 \end{document}