fix: remove non-const .into() call from const function

A const function cannot call non-const functions, so we remove the trailing
.into() call and use raw literals instead.

Author: brokemillenial

library/core/src/time.rs

@@ -328,7 +328,7 @@ impl Duration {
     #[inline]
     pub const fn from_nanos_u128(nanos: u128) -> Duration {
         const NANOS_PER_SEC: u128 = self::NANOS_PER_SEC as u128;
-        let secs: u128 = (nanos / NANOS_PER_SEC);
+        let secs: u128 = nanos / NANOS_PER_SEC;
         if (secs > u64::MAX.into()) {
             panic!("overflow in duration in Duration::from_nanos_u128");
         }