Update licensing information in pyproject.toml

Author: hannesbraun

pyproject.toml

@@ -3,7 +3,7 @@ name = "pdoc"
 description = "API Documentation for Python Projects"
 readme = "README.md"
 requires-python = ">=3.10"
-license = { text="MIT-0" }
+license = "MIT-0"
 authors = [{name = "Maximilian Hils", email = "pdoc@maximilianhils.com"}]
 dynamic = ["version"]
 
@@ -18,7 +18,6 @@ classifiers = [
     "Topic :: Documentation",
     "Topic :: Software Development :: Documentation",
     "Topic :: Utilities",
-    "License :: Public Domain",
     "Development Status :: 5 - Production/Stable",
     "Environment :: Console",
     "Intended Audience :: Developers",