⬆ Bump typing-extensions from 4.13.2 to 4.15.0 for Python 3.9+ (#1580)

* bump typing-extensions to 4.15.0

* keep older version for Python 3.8

* fix

Author: svlandeg

requirements-tests.txt

@@ -9,4 +9,6 @@ fastapi >=0.103.2
 httpx ==0.28.1
 dirty-equals ==0.9.0
 jinja2 ==3.1.6
-typing-extensions ==4.13.2
+# Remove when support for Python 3.8 is dropped
+typing-extensions ==4.13.2; python_version < "3.9"
+typing-extensions ==4.15.0; python_version >= "3.9"