Update Python range to >= 3.10, per 3.9 EOL

No effects were observed on Make-managed files.

References:
* https://peps.python.org/pep-0596/

Signed-off-by: Alex Nelsin <alexander.nelson@nist.gov>

Author: ajnelson-nist

.github/workflows/cicd.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         python-version: 
-          - '3.9'
+          - '3.10'
           - '3.13'
 
     steps:

setup.cfg

@@ -19,7 +19,7 @@ include_package_data = true
 install_requires =
     rdflib >= 6.2.0
 packages = case_example_mapping
-python_requires = >=3.9
+python_requires = >=3.10
 
 [options.entry_points]
 console_scripts =