Update dependencies, switch to once_cell

I updated kpathsea because there was a security warning about a
dependency of the current version. While I was messing with
dependencies, I switched things over from `lazy_static!` to
`once_cell`'s `Lazy`, which is likely to be standardized so will be
better to use in the long term.

Cargo.toml

@@ -18,5 +18,5 @@ name = "interpret"
 path = "src/interpret.rs"
 
 [dependencies]
-kpathsea = "0.2.2"
-lazy_static = "1.3.0"
+kpathsea = "0.2.3"
+once_cell = "1.16.0"

src/box_to_dvi.rs

@@ -285,16 +285,16 @@ impl DVIFileWriter {
 mod tests {
     use super::*;
 
+    use once_cell::sync::Lazy;
+
     use crate::boxes::{GlueSetRatioKind, HorizontalBox, VerticalBox};
     use crate::dimension::{Dimen, FilDimen, FilKind, SpringDimen, Unit};
     use crate::glue::Glue;
 
-    lazy_static! {
-        static ref CMR10: Font = Font {
-            font_name: "cmr10".to_string(),
-            scale: Dimen::from_unit(10.0, Unit::Point),
-        };
-    }
+    static CMR10: Lazy<Font> = Lazy::new(|| Font {
+        font_name: "cmr10".to_string(),
+        scale: Dimen::from_unit(10.0, Unit::Point),
+    });
 
     #[test]
     fn it_generates_commands_for_chars() {

src/boxes.rs

@@ -215,16 +215,16 @@ impl TeXBox {
 mod tests {
     use super::*;
 
+    use once_cell::sync::Lazy;
+
     use crate::dimension::Unit;
     use crate::font::Font;
     use crate::glue::Glue;
 
-    lazy_static! {
-        static ref CMR10: Font = Font {
-            font_name: "cmr10".to_string(),
-            scale: Dimen::from_unit(10.0, Unit::Point),
-        };
-    }
+    static CMR10: Lazy<Font> = Lazy::new(|| Font {
+        font_name: "cmr10".to_string(),
+        scale: Dimen::from_unit(10.0, Unit::Point),
+    });
 
     #[test]
     fn it_parses_to_chars() {

src/interpret.rs

@@ -1,8 +1,5 @@
 #![allow(dead_code)]
 
-#[macro_use]
-extern crate lazy_static;
-
 mod dimension;
 mod dvi;
 mod font;

src/main.rs

@@ -1,8 +1,5 @@
 #![deny(clippy::all)]
 
-#[macro_use]
-extern crate lazy_static;
-
 mod box_to_dvi;
 mod boxes;
 mod category;

src/parser/boxes.rs

@@ -326,16 +326,16 @@ impl<'a> Parser<'a> {
 mod tests {
     use super::*;
 
+    use once_cell::sync::Lazy;
+
     use crate::dimension::{Dimen, FilDimen, FilKind, Unit};
     use crate::font::Font;
     use crate::testing::with_parser;
 
-    lazy_static! {
-        static ref CMR10: Font = Font {
-            font_name: "cmr10".to_string(),
-            scale: Dimen::from_unit(10.0, Unit::Point),
-        };
-    }
+    static CMR10: Lazy<Font> = Lazy::new(|| Font {
+        font_name: "cmr10".to_string(),
+        scale: Dimen::from_unit(10.0, Unit::Point),
+    });
 
     #[test]
     fn it_parses_boxes_with_characters() {

src/parser/horizontal_list.rs

@@ -236,24 +236,22 @@ impl<'a> Parser<'a> {
 mod tests {
     use super::*;
 
+    use once_cell::sync::Lazy;
+
     use crate::dimension::{FilDimen, FilKind};
     use crate::font::Font;
     use crate::math_code::MathCode;
     use crate::testing::with_parser;
 
-    lazy_static! {
-        static ref CMR10: Font = Font {
-            font_name: "cmr10".to_string(),
-            scale: Dimen::from_unit(10.0, Unit::Point),
-        };
-    }
+    static CMR10: Lazy<Font> = Lazy::new(|| Font {
+        font_name: "cmr10".to_string(),
+        scale: Dimen::from_unit(10.0, Unit::Point),
+    });
 
-    lazy_static! {
-        static ref CMMI10: Font = Font {
-            font_name: "cmmi10".to_string(),
-            scale: Dimen::from_unit(10.0, Unit::Point),
-        };
-    }
+    static CMMI10: Lazy<Font> = Lazy::new(|| Font {
+        font_name: "cmmi10".to_string(),
+        scale: Dimen::from_unit(10.0, Unit::Point),
+    });
 
     fn assert_parses_to_with_restricted(
         lines: &[&str],