Update license format in pyproject.toml to a simplified string representation and remove redundant classifier entry for OSI approved license.

Author: networmix

pyproject.toml

@@ -8,15 +8,14 @@ version = "0.6.0"
 description = "C++ implementation of graph algorithms for network flow analysis and traffic engineering with Python bindings"
 readme = "README.md"
 requires-python = ">=3.11"
-license = { text = "BSD-3-Clause" }
+license = "BSD-3-Clause"
 authors = [{ name = "Project Contributors" }]
 classifiers = [
     "Development Status :: 3 - Alpha",
     "Intended Audience :: Developers",
     "Intended Audience :: Science/Research",
     "Topic :: Scientific/Engineering",
     "Topic :: Software Development :: Libraries :: Python Modules",
-    "License :: OSI Approved :: BSD License",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",