Correct trove metadata related to supported platforms (#90)

Author: ssbarnea

pyproject.toml

@@ -23,18 +23,22 @@ maintainers = [
 ]
 license = {text = "MIT"}
 classifiers = [
+    # https://pypi.org/classifiers/
     "Development Status :: 5 - Production/Stable",
     "Environment :: Console",
     "Intended Audience :: Developers",
     "Intended Audience :: Information Technology",
     "Intended Audience :: System Administrators",
     "License :: OSI Approved :: MIT License",
-    "Operating System :: OS Independent",
+    "Operating System :: MacOS",
+    "Operating System :: POSIX :: Linux",
+    "Operating System :: POSIX",
     "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",
     "Programming Language :: Python",
     "Topic :: System :: Systems Administration",
     "Topic :: Utilities",