Fix setuptools license metadata for CI

Author: Poryaei

pyproject.toml

@@ -17,7 +17,6 @@ keywords = ["pine-script", "tradingview", "validator", "parser", "lint", "agents
 classifiers = [
     "Development Status :: 4 - Beta",
     "Intended Audience :: Developers",
-    "License :: OSI Approved :: MIT License",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",