update tags in pkg metadata (#384)

setup.py

@@ -81,7 +81,7 @@ def _prepare_extras(requirements_dir: str = _PATH_REQUIRES, skip_files: tuple =
         "Natural Language :: English",
         # How mature is this project? Common values are
         #   3 - Alpha, 4 - Beta, 5 - Production/Stable
-        "Development Status :: 3 - Alpha",
+        "Development Status :: 4 - Beta",
         # Indicate who your project is intended for
         "Intended Audience :: Developers",
         "Topic :: Scientific/Engineering :: Artificial Intelligence",
@@ -92,6 +92,8 @@ def _prepare_extras(requirements_dir: str = _PATH_REQUIRES, skip_files: tuple =
         # Specify the Python versions you support here. In particular, ensure
         # that you indicate whether you support Python 2, Python 3 or both.
         "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",