chore: update python classifiers in pyproject.toml

Author: Elan456

pyproject.toml

@@ -16,6 +16,12 @@ keywords = ["quadtree", "spatial-index", "geometry", "rust", "pyo3", "nearest-ne
 classifiers = [
   "Programming Language :: Python :: 3",
   "Programming Language :: Python :: 3 :: Only",
+  "Programming Language :: Python :: 3.9",
+  "Programming Language :: Python :: 3.10",
+  "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: 3.12",
+  "Programming Language :: Python :: 3.13",
+  "Programming Language :: Python :: 3.14",
   "Programming Language :: Rust",
   "Programming Language :: Python :: Implementation :: CPython",
   "Operating System :: OS Independent",