Bump cargo to 1.88; 2024 edition for kcl-lib (#7618)

This is a big one because the edition changes a fair number of things.

rust/kcl-lib/src/std/appearance.rs

@@ -1,7 +1,7 @@
 //! Standard library appearance.
 
 use anyhow::Result;
-use kcmc::{each_cmd as mcmd, ModelingCmd};
+use kcmc::{ModelingCmd, each_cmd as mcmd};
 use kittycad_modeling_cmds::{self as kcmc, shared::Color};
 use regex::Regex;
 use rgba_simple::Hex;
@@ -10,8 +10,8 @@ use super::args::TyF64;
 use crate::{
     errors::{KclError, KclErrorDetails},
     execution::{
-        types::{ArrayLen, RuntimeType},
         ExecState, KclValue, SolidOrImportedGeometry,
+        types::{ArrayLen, RuntimeType},
     },
     std::Args,
 };
@@ -63,7 +63,7 @@ pub async fn appearance(exec_state: &mut ExecState, args: Args) -> Result<KclVal
     // Make sure the color if set is valid.
     if !HEX_REGEX.is_match(&color) {
         return Err(KclError::new_semantic(KclErrorDetails::new(
-            format!("Invalid hex color (`{}`), try something like `#fff000`", color),
+            format!("Invalid hex color (`{color}`), try something like `#fff000`"),
             vec![args.source_range],
         )));
     }