fixed classifier meta data

Author: orbeckst

pyproject.toml

@@ -22,7 +22,7 @@ classifiers = [
     "Intended Audience :: Science/Research",
     "Operating System :: POSIX",
     "Operating System :: MacOS :: MacOS X",
-    "Operating System :: Microsoft :: Windows ",
+    "Operating System :: Microsoft :: Windows",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.11",