[12.x] Refactor Query Builder: Extract shared logic from whereAny and whereAll into a reusable method

[ezequidias]

This PR refactors the Query\Builder class to eliminate duplicated logic between the whereAny and whereAll methods.

Both methods were doing the same thing internally — looping over the columns and applying a where clause — with only the boolean (or vs and) being different. That repeated logic has now been pulled into a new internal method: addNestedWhereGroup.

Before

Both whereAny and whereAll had almost identical code blocks for building nested conditions. This made the code harder to maintain and more error-prone when changes were needed.

After

Now both methods delegate to addNestedWhereGroup, which handles the common logic. This keeps things cleaner, more maintainable, and easier to reason about.

[taylorotwell]

Thanks for your pull request to Laravel!

Unfortunately, I'm going to delay merging this code for now. To preserve our ability to adequately maintain the framework, we need to be very careful regarding the amount of code we include.

If applicable, please consider releasing your code as a package so that the community can still take advantage of your contributions!