[ci] Roll pinned nightly toolchain (#2545)

gherrit-pr-id: I2fa507de6315da54afcf4e371b537db6eabdeaa1

Author: google-pr-creation-bot

Cargo.toml

@@ -60,7 +60,7 @@ zerocopy-panic-in-const-and-vec-try-reserve-1-57-0 = "1.57.0"
 [package.metadata.ci]
 # The versions of the stable and nightly compiler toolchains to use in CI.
 pinned-stable = "1.87.0"
-pinned-nightly = "nightly-2025-05-16"
+pinned-nightly = "nightly-2025-05-19"
 
 [package.metadata.docs.rs]
 all-features = true

src/byteorder.rs

@@ -882,15 +882,15 @@ macro_rules! define_float_conversion {
     ($ty:ty, $bits:ident, $bytes:expr, $from:ident, $to:ident) => {
         // Clippy: The suggestion of using `from_bits()` instead doesn't work
         // because `from_bits` is not const-stable on our MSRV.
-        #[allow(clippy::transmute_int_to_float)]
+        #[allow(clippy::unnecessary_transmutes)]
         pub(crate) const fn $from(bytes: [u8; $bytes]) -> $ty {
             transmute!($bits::$from(bytes))
         }
 
         pub(crate) const fn $to(f: $ty) -> [u8; $bytes] {
             // Clippy: The suggestion of using `f.to_bits()` instead doesn't
             // work because `to_bits` is not const-stable on our MSRV.
-            #[allow(clippy::transmute_float_to_int)]
+            #[allow(clippy::unnecessary_transmutes)]
             let bits: $bits = transmute!(f);
             bits.$to()
         }