rust: Upgrade 1.74.1 -> 1.75.0

rust: Upgrade 1.74.1 -> 1.75.0

* Drop backported musl fixes.

* Set `change-id` rather than `changelog-seen`
to fix build warning.

* Add fixes for 4b7e0a0b56aa24 ("Handle vendored sources
when remapping paths") which otherwise cause build failures:

| thread 'main' panicked at src/core/builder.rs:1795:26:
| std::fs::read_dir(registry_src) failed with No such file or directory (os=
 error 2)

https://blog.rust-lang.org/2023/12/28/Rust-1.75.0.html

Signed-off-by: Yash Shinde <Yash.Shinde@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>