Replace lazy_static with std::sync::LazyLock (#16066)

Closes #15860 

Since rust std now supports LazyLock replacing lazy_static with it
reduce the external dependency.

Release Notes:

- N/A

---------

Co-authored-by: Marshall Bowers <elliott.codes@gmail.com>

crates/language/src/buffer.rs

@@ -24,7 +24,6 @@ use gpui::{
     AnyElement, AppContext, EventEmitter, HighlightStyle, ModelContext, Task, TaskLabel,
     WindowContext,
 };
-use lazy_static::lazy_static;
 use lsp::LanguageServerId;
 use parking_lot::Mutex;
 use serde_json::Value;
@@ -44,7 +43,7 @@ use std::{
     ops::{Deref, Range},
     path::{Path, PathBuf},
     str,
-    sync::Arc,
+    sync::{Arc, LazyLock},
     time::{Duration, Instant, SystemTime},
     vec,
 };
@@ -67,11 +66,9 @@ pub use {tree_sitter_rust, tree_sitter_typescript};
 
 pub use lsp::DiagnosticSeverity;
 
-lazy_static! {
-    /// A label for the background task spawned by the buffer to compute
-    /// a diff against the contents of its file.
-    pub static ref BUFFER_DIFF_TASK: TaskLabel = TaskLabel::new();
-}
+/// A label for the background task spawned by the buffer to compute
+/// a diff against the contents of its file.
+pub static BUFFER_DIFF_TASK: LazyLock<TaskLabel> = LazyLock::new(|| TaskLabel::new());
 
 /// Indicate whether a [Buffer] has permissions to edit.
 #[derive(PartialEq, Clone, Copy, Debug)]