[pre-commit.ci] auto fixes from pre-commit.com hooks

pre-commit-ci[bot] · pre-commit-ci[bot] · commit e0048aa44b2c · 2023-06-19T22:19:35.000Z
for more information, see https://pre-commit.ci
diff --git a/setup.cfg b/setup.cfg
@@ -7,7 +7,7 @@ url = https://github.com/OpenSourceEconomics/pybaum
 author = Janos Gabler, Tobias Raabe
 author_email = janos.gabler@gmail.com
 license = MIT
-license_file = LICENSE
+license_files = LICENSE
 platforms = unix, linux, osx, cygwin, win32
 classifiers =
     Development Status :: 3 - Alpha
