[clang-tools-extra] [clang-tidy][abseil-string-find-startswith] Add string_view to default string-like classes (PR #72283)

[Piotr Zegar via cfe-commits]

https://github.com/PiotrZSL commented:

As for this check:
- use string header
- update check documentation (option default and description)
- make sure that documentation is in sync with class documentation
- add release notes entry about improving check to support std::string_view

https://github.com/llvm/llvm-project/pull/72283