zephyr-sys: Suppress unnecessary_transmute warnings introduced by 1.88

Rust 1.88 introduces `unnecessary_transmute` warninigs that are
triggered by the bindgen code.  Suppress these.

Signed-off-by: David Brown <[email protected]>

Author: d3zd3z

zephyr-sys/src/lib.rs

@@ -21,6 +21,7 @@
 #![allow(clippy::transmute_int_to_bool)]
 #![allow(clippy::useless_transmute)]
 #![allow(clippy::len_without_is_empty)]
+#![allow(unnecessary_transmutes)]
 include!(concat!(env!("OUT_DIR"), "/bindings.rs"));
 
 // We have directed bindgen to not generate copy for any times.  It unfortunately doesn't have an