snippets: add a snippet for AoU stats commit

Co-Authored-by: iGor milhit <igor@milhit.ch>

my_snippets/gitcommit.lua

@@ -34,5 +34,15 @@ return {
         f(get_date, {})
       }
     )
+  ),
+  s(
+    {
+      trig = "aou",
+      name = "AoU stats commit message",
+      dscr = "Commit message for an increment of AoU validation statistics."
+    },
+    {
+      t("r+e: incrémente les stats de validation de l'AoU")
+    }
   )
 }