[project update] Add oso 0.7.1

Author: gj

draft/2020-11-4-this-week-in-rust.md

@@ -23,6 +23,7 @@ If you find any errors in this week's issue, [please submit a PR](https://github
 ### Learn Rust
 
 ### Project Updates
+* [oso, an open-source policy engine for authorization written in Rust](https://github.com/osohq/oso), released [version 0.7.1 of their authorization library for Rust projects!](https://docs.rs/oso/0.7.1/oso/)
 
 ### Miscellaneous