Merge branch 'master' into do_not_recommend

Author: weiznich

.github/workflows/main.yml

@@ -4,7 +4,7 @@ on:
   merge_group:
 
 env:
-  MDBOOK_VERSION: 0.4.40
+  MDBOOK_VERSION: 0.4.43
 
 jobs:
   code-tests:

book.toml

@@ -16,7 +16,7 @@ smart-punctuation = true
 "/unsafe-functions.html" = "unsafe-keyword.html"
 
 [rust]
-edition = "2021"
+edition = "2024"
 
 [preprocessor.spec]
 command = "cargo run --release --manifest-path mdbook-spec/Cargo.toml"