Update Python versions in setup.cfg to 3.8, 3.9, 3.10.

Author: BSchilperoort

setup.cfg

@@ -12,9 +12,9 @@ classifiers =
     License :: OSI Approved :: Apache Software License
     Natural Language :: English
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
 description = python modules for running the STEMMUS-SCOPE model
 keywords =
     STEMMUS-SCOPE
@@ -28,7 +28,7 @@ url = https://github.com/EcoExtreML/stemmus_scope_processing
 version = 0.1.1
 
 [options]
-python_requires = >=3.7,<3.10
+python_requires = >=3.8,<3.11
 zip_safe = False
 include_package_data = True
 packages = find: