Bump apistub pin to apiview-stub-generator==0.3.30 (#48169)

Updates the APIView stub generator from 0.3.28 to the released 0.3.30.


Copilot-Session: 2ee2e202-5f6a-4262-896b-4dae76544d0d

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: danieljurek

eng/apiview_reqs.txt

@@ -15,5 +15,5 @@ tomli==2.2.1
 tomlkit==0.13.2
 typing_extensions==4.15.0
 wrapt==1.17.2
-apiview-stub-generator==0.3.28
+apiview-stub-generator==0.3.30
 pip==24.0