add Heave project to projects/tooling updates section

Author: katekorsaro

draft/2025-10-15-this-week-in-rust.md

@@ -44,6 +44,7 @@ and just ask the editors to select the category.
 ### Newsletters
 
 ### Project/Tooling Updates
+* [Announcing Heave 0.1.0: an EAV data model rust library that can persist custom structs onto a SQLite DB with no friction at all!](https://www.rustydonkey.dev/blog/2025.10.08_introduction_to_heave/)
 
 ### Observations/Thoughts