build: remove upper version requirement on Python (#106)

aw-qt fails to build on Fedora 41, because it requires Python < 3.13 and Fedora uses Python 3.13.
It works fine with the latest version of Python though.

This patch is intended to help with Fedora packaging by assuming that aw-qt works on the latest Python instead
of requiring the packager to test it manually with every major release of Python.

pyproject.toml

@@ -13,7 +13,7 @@ packages = [
 aw-qt = "aw_qt:main"
 
 [tool.poetry.dependencies]
-python = "^3.8,<3.13"
+python = "^3.8"
 aw-core = "^0.5"
 
 pyobjc-framework-Cocoa = { version = "*", platform = "darwin" }