Migrate to the std implementation of OnceCell

app/src/main/rust/Cargo.toml

@@ -14,7 +14,6 @@ quick-xml = { default-features = false, version = "0.32" }
 tl = "0.7"
 log = "0.4"
 android_logger = { default-features = false, version = "0.13" }
-once_cell = { default-features = false, version = "1.19" }
 serde_cbor = "0.11"
 serde = { version = "1.0", features = ["derive"] }
 anyhow = { version = "1.0" }

app/src/main/rust/src/lib.rs

@@ -5,7 +5,6 @@ extern crate anyhow;
 extern crate jni;
 extern crate jni_fn;
 extern crate log;
-extern crate once_cell;
 extern crate quick_xml;
 extern crate regex_lite;
 extern crate serde;
@@ -28,7 +27,7 @@ use tl::{Bytes, Node, NodeHandle, Parser, VDom};
 #[macro_export]
 macro_rules! regex {
     ($re:literal $(,)?) => {{
-        static RE: once_cell::sync::OnceCell<regex_lite::Regex> = once_cell::sync::OnceCell::new();
+        static RE: std::sync::OnceLock<regex_lite::Regex> = std::sync::OnceLock::new();
         RE.get_or_init(|| regex_lite::Regex::new($re).unwrap())
     }};
 }