Update setup.cfg

Author: pllim

setup.cfg

@@ -8,7 +8,7 @@ author_email = [email protected]
 license = BSD 3-Clause License
 url = https://github.com/astropy/sphinx-automodapi
 classifiers =
-    Development Status :: 3 - Alpha
+    Development Status :: 5 - Production/Stable
     Intended Audience :: Developers
     Programming Language :: Python
     Programming Language :: Python :: 3
@@ -31,8 +31,6 @@ test =
     coverage
     setuptools;python_version>='3.12'
 rtd =
-    # https://github.com/readthedocs/sphinx_rtd_theme/issues/1463
-    sphinx<7
     sphinx-rtd-theme
 
 [options.package_data]