Test and support Python 3.8+

Previously just tested Py 3.7 and 3.8.
But Py 3.7 reached end of life and newer versions should also be supported.

.github/workflows/python-package.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       matrix:
         platform: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: [3.7, 3.8]
+        python-version: [3.8, 3.9, 3.10, 3.11]
 
     steps:
     - uses: actions/checkout@v2

setup.py

@@ -20,15 +20,15 @@
 
 setup(
     name="mobile-env",
-    version="2.0.1",
+    version="2.0.2",
     author="Stefan Schneider, Stefan Werner",
     description="mobile-env: An Open Environment for Autonomous Coordination in "
     "Wireless Mobile Networks",
     long_description=long_description,
     long_description_content_type="text/markdown",
     url="https://github.com/stefanbschneider/mobile-env",
     packages=find_packages(),
-    python_requires=">=3.7.0",
+    python_requires=">=3.8.0",
     install_requires=requirements,
     zip_safe=False,
     classifiers=[