Auto merge of #153877 - Enselic:basic-stepping-aarch64, r=mati865

tests/debuginfo/basic-stepping.rs: Remove ignore-aarch64

This test passes for me both with `gdb` and `lldb` when I run it on an aarch64 machine (namely [dev-desktop-eu-1](https://forge.rust-lang.org/infra/docs/dev-desktop.html)).

And as can be seen below, it now passes PR CI, including **aarch64-gnu-llvm-21-1**.
This test used to [fail](https://github.com/rust-lang/rust/pull/144497#issuecomment-3121598361) PR CI, in particular **aarch64-gnu-llvm-19-1**.

I suggest we put this in a rollup as an iffy PR to see if we can get it through. If we can, we are one step closer towards closing rust-lang/rust#33013.