Add rust-query 0.4 blog post

Author: LHolten

draft/2025-04-16-this-week-in-rust.md

@@ -39,6 +39,7 @@ and just ask the editors to select the category.
 ### Newsletters
 
 ### Project/Tooling Updates
+[Version 0.4 of rust-query is released!](https://blog.lucasholten.com/rust-query-0-4/)
 
 ### Observations/Thoughts