Remove Python 3.8 classifier

Author: p1c2u

pyproject.toml

@@ -47,7 +47,6 @@ classifiers = [
     "Topic :: Software Development :: Libraries :: Python Modules",
     "Operating System :: OS Independent",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",