update package metadata

setup.cfg

@@ -9,15 +9,18 @@ author_email = [email protected]
 license = BSD-3-Clause
 license_files = LICENSE
 classifiers =
-    Development Status :: 2 - Pre-Alpha
+    Development Status :: 4 - Beta
     Framework :: napari
     Intended Audience :: Developers
     License :: OSI Approved :: BSD License
     Operating System :: OS Independent
     Programming Language :: Python
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3 :: Only
-    Topic :: Software Development :: Testing
+    Topic :: Scientific/Engineering
+    Topic :: Scientific/Engineering :: Astronomy
+    Topic :: Scientific/Engineering :: Image Processing
+    Topic :: Scientific/Engineering :: Visualization
 include_package_data = True
 project_urls =
     Bug Tracker = https://github.com/data-exp-lab/yt-napari/issues
@@ -36,7 +39,7 @@ install_requires =
     qtpy
     unyt
     yt>=4.0.1
-python_requires = >=3.8
+python_requires = >=3.9
 package_dir =
     =src
 setup_requires =