Update Python version support.

Author: icemac

setup.py

@@ -44,7 +44,7 @@ def read(*rnames):
 
 setup(name='zope.app.form',
       version='6.2.dev0',
-      author='Zope Corporation and Contributors',
+      author='Zope Foundation and Contributors',
       author_email='[email protected]',
       description='The Original Zope 3 Form Framework',
       long_description=(
@@ -62,7 +62,6 @@ def read(*rnames):
           'License :: OSI Approved :: Zope Public License',
           'Programming Language :: Python',
           'Programming Language :: Python :: 3',
-          'Programming Language :: Python :: 3.8',
           'Programming Language :: Python :: 3.9',
           'Programming Language :: Python :: 3.10',
           'Programming Language :: Python :: 3.11',
@@ -76,11 +75,11 @@ def read(*rnames):
           'Framework :: Zope :: 3',
       ],
       url='https://github.com/zopefoundation/zope.app.form',
-      license='ZPL 2.1',
+      license='ZPL-2.1',
       packages=find_packages('src'),
       package_dir={'': 'src'},
       namespace_packages=['zope', 'zope.app'],
-      python_requires='>=3.8',
+      python_requires='>=3.9',
       extras_require={
           'test': tests_require
       },