Update license_file to license_files (dpkp#131)

wbarnha · micwoj92 · bradenneal1 · commit 2e284fbf2482 · 2024-05-17T11:09:53.000+12:00
The former has been deprecated since setuptools 56

Co-authored-by: micwoj92 &lt;45581170+micwoj92@users.noreply.github.com&gt;
diff --git a/setup.cfg b/setup.cfg
@@ -2,4 +2,4 @@
 universal=1
 
 [metadata]
-license_file = LICENSE
+license_files = LICENSE
