bump apiview_reqs.txt typing extensions (#43277)

Author: swathipil

eng/apiview_reqs.txt

@@ -12,6 +12,6 @@ pylint-guidelines-checker==0.0.7
 six==1.17.0
 tomli==2.2.1
 tomlkit==0.13.2
-typing_extensions==4.12.2
+typing_extensions==4.15.0
 wrapt==1.17.2
 apiview-stub-generator==0.3.23