fix: bump maximum supported Python version to include 3.13

Author: mpetazzoni

pyproject.toml

@@ -3,7 +3,7 @@ name = "harlequin-wherobots"
 version = "0.7.0"
 description = "Harlequin adapter for Wherobots' Spatial SQL API"
 authors = [{ name = "Maxime Petazzoni", email = "max@wherobots.com" }]
-requires-python = ">=3.9,<3.13"
+requires-python = ">=3.9,<3.14"
 readme = "README.md"
 dependencies = [
     "harlequin",