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

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

setup.cfg

@@ -10,7 +10,6 @@ license = MIT
 license_files = LICENSE
 classifiers =
     Development Status :: 1 - Planning
-    License :: OSI Approved :: MIT License
     Operating System :: OS Independent
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3 :: Only
@@ -25,7 +24,7 @@ install_requires =
     aiidalab>=21.09.0
     humanize
     ipywidgets
-python_requires = >=3.8
+python_requires = >=3.9
 
 [options.extras_require]
 dev =