Update xarray/core/utils.py

Co-Authored-By: Maximilian Roos <5635139+max-sixty@users.noreply.github.com>

Author: HasanAhmadQ7

xarray/core/utils.py

@@ -150,7 +150,7 @@ def list_equiv(first, second):
         return False
     else:
         for f, s in zip(first, second):
-            equiv = equiv and equivalent(first[i], second[i])
+            equiv = equiv and equivalent(f, s)
     return equiv