[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

@@ -15,7 +15,6 @@ classifiers =
     Operating System :: OS Independent
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3 :: Only
-    Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
 project_urls =
     Bug Tracker =   https://github.com/hsf-training/participation-analysis/issues
@@ -32,7 +31,7 @@ install_requires =
     pandas
     python-frontmatter
     pyyaml
-python_requires = >=3.9
+python_requires = >=3.10
 include_package_data = True
 package_dir =
     =src