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/benches/lsp_semantic_tokens_benchmark_criterion.rs

@@ -1,6 +1,6 @@
 use std::hint::black_box;
 
-use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion};
+use criterion::{BenchmarkId, Criterion, criterion_group, criterion_main};
 use kcl_lib::kcl_lsp_server;
 use tokio::runtime::Runtime;
 use tower_lsp::LanguageServer;