Use std::sync::LazyLock rather than once_cell.

This was recently stabilised in Rust 1.80.

Test: Treehugger
Change-Id: I3748566599fb7bb63a7fa14a604b1405406c519c

Author: qwandor

libs/debugstore/rust/Android.bp

@@ -23,7 +23,6 @@ rust_defaults {
     rustlibs: [
         "libcrossbeam_queue",
         "libparking_lot",
-        "libonce_cell",
         "libcxx",
     ],
     shared_libs: ["libutils"],

libs/debugstore/rust/src/core.rs

@@ -17,12 +17,14 @@ use super::event::Event;
 use super::event_type::EventType;
 use super::storage::Storage;
 use crate::cxxffi::uptimeMillis;
-use once_cell::sync::Lazy;
 use std::fmt;
-use std::sync::atomic::{AtomicU64, Ordering};
+use std::sync::{
+    atomic::{AtomicU64, Ordering},
+    LazyLock,
+};
 
 //  Lazily initialized static instance of DebugStore.
-static INSTANCE: Lazy<DebugStore> = Lazy::new(DebugStore::new);
+static INSTANCE: LazyLock<DebugStore> = LazyLock::new(DebugStore::new);
 
 /// The `DebugStore` struct is responsible for managing debug events and data.
 pub struct DebugStore {