Reasoning models respond with `find_in_page` instead of `find`

[Arjentix]

Current specification says nothing about find_in_page, only find.

find_in_page is even mentioned in official docs: https://platform.openai.com/docs/guides/tools-web-search

Because of this mistake popular api libraries don't work properly.

Here is related PR for python api: openai/openai-python#2622