Because of cython>3 release we need to update PyYaml (#1015)

Author: kddejong

setup.py

@@ -46,7 +46,7 @@ def find_version(*file_paths):
         "pytest-random-order>=1.0.4",
         "pytest-localserver>=0.5.0",
         "Werkzeug>=2.2.0",
-        "PyYAML>=5.1,<6.0",
+        "PyYAML>=6.0.1",
         "requests>=2.22",
         "hypothesis>=4.32",
         "colorama>=0.4.1",