Use std::sync::LazyLock instead of lazy_static crate

LazyLock was stabilized in Rust 1.80.0, allowing us to drop this
external dependency now.

Cargo.lock

@@ -360,7 +360,6 @@ dependencies = [
  "eyre",
  "gumdrop",
  "ignore",
- "lazy_static",
  "matter",
  "pathdiff",
  "percent-encoding",

Cargo.toml

@@ -28,7 +28,6 @@ doc = false
 eyre = "0.6.12"
 gumdrop = "0.8.1"
 ignore = "0.4.22"
-lazy_static = "1.5.0"
 matter = "0.1.0-alpha4"
 pathdiff = "0.2.1"
 percent-encoding = "2.3.1"

src/lib.rs

@@ -1,8 +1,5 @@
 pub use {pulldown_cmark, serde_yaml};
 
-#[macro_use]
-extern crate lazy_static;
-
 mod context;
 mod frontmatter;
 pub mod postprocessors;
@@ -898,20 +895,22 @@ fn codeblock_kind_to_owned<'a>(codeblock_kind: CodeBlockKind<'_>) -> CodeBlockKi
 
 #[cfg(test)]
 mod tests {
+    use std::sync::LazyLock;
+
     use pretty_assertions::assert_eq;
     use rstest::rstest;
 
     use super::*;
 
-    lazy_static! {
-        static ref VAULT: Vec<PathBuf> = vec![
+    static VAULT: LazyLock<Vec<PathBuf>> = LazyLock::new(|| {
+        vec![
             PathBuf::from("NoteA.md"),
             PathBuf::from("Document.pdf"),
             PathBuf::from("Note.1.md"),
             PathBuf::from("nested/NoteA.md"),
             PathBuf::from("Note\u{E4}.md"), // Noteä.md, see also encodings() below
-        ];
-    }
+        ]
+    });
 
     #[test]
     #[allow(clippy::unicode_not_nfc)]

src/references.rs

@@ -1,11 +1,11 @@
 use std::fmt;
+use std::sync::LazyLock;
 
 use regex::Regex;
 
-lazy_static! {
-    static ref OBSIDIAN_NOTE_LINK_RE: Regex =
-        Regex::new(r"^(?P<file>[^#|]+)??(#(?P<section>.+?))??(\|(?P<label>.+?))??$").unwrap();
-}
+static OBSIDIAN_NOTE_LINK_RE: LazyLock<Regex> = LazyLock::new(|| {
+    Regex::new(r"^(?P<file>[^#|]+)??(#(?P<section>.+?))??(\|(?P<label>.+?))??$").unwrap()
+});
 
 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 /// `ObsidianNoteReference` represents the structure of a `[[note]]` or `![[embed]]` reference.