fix: remove invalid classifier and bump version to 0.2.3

Added classifiers for:
- Environment (Console)
- Intended Audience (System Administrators)
- Operating System (OS Independent)
- Python Implementation (CPython)
- Natural Language (English)
- Additional Topics (Installation/Setup, Distribution)
- Framework (pip)

setup.py

@@ -2,7 +2,7 @@ from setuptools import setup, find_packages
 
 setup(
     name="pip-add",
-    version="0.2.1",
+    version="0.2.3",
     packages=find_packages(),
     install_requires=[
         "pip",
@@ -21,13 +21,23 @@ setup(
     url="https://github.com/PacNPal/pip-add",
     classifiers=[
         "Development Status :: 4 - Beta",
+        "Environment :: Console",
         "Intended Audience :: Developers",
+        "Intended Audience :: Information Technology",
+        "Intended Audience :: System Administrators",
         "License :: OSI Approved :: MIT License",
+        "Natural Language :: English",
+        "Operating System :: OS Independent",
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
         "Programming Language :: Python :: 3.13",
+        "Programming Language :: Python :: Implementation :: CPython",
         "Topic :: Software Development :: Libraries :: Python Modules",
+        "Topic :: System :: Installation/Setup",
+        "Topic :: System :: Software Distribution",
+        "Topic :: System :: Systems Administration",
+        "Topic :: Utilities",
     ],
     python_requires=">=3.11",
 )