scripts: generate_rust_analyzer: compile sysroot with correct edition

scripts: generate_rust_analyzer: compile sysroot with correct edition

Use `core_edition` for all sysroot crates rather than just core as all
were updated to edition 2024 in Rust 1.87.

Fixes: f4daa80d6be7 ("rust: compile libcore with edition 2024 for 1.87+")
Signed-off-by: Tamir Duberstein <tamird@kernel.org>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20260116-rust-analyzer-sysroot-v2-1-094aedc33208@kernel.org
[ Added `>`s to make the quote a single block. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>