[clang-tools-extra] [clang-tidy] Improve redundant-casting check for binary operation (PR #191386)

[Gaurav Dhingra via cfe-commits]

gxyd wrote:

> Also for the ReleaseNotes, you can update the branch then fix the ordering :)

I needed to have the commits from *main* branch for this, so instead of "merging" I did a "rebase" and I also updated the ReleaseNotes entry to reflect the newly added option as well.

https://github.com/llvm/llvm-project/pull/191386