docs(contributing): update references to rye-up.com (#394)

Author: stainless-app[bot]

CONTRIBUTING.md

@@ -2,7 +2,7 @@
 
 ### With Rye
 
-We use [Rye](https://rye-up.com/) to manage dependencies so we highly recommend [installing it](https://rye-up.com/guide/installation/) as it will automatically provision a Python environment with the expected Python version.
+We use [Rye](https://rye.astral.sh/) to manage dependencies so we highly recommend [installing it](https://rye.astral.sh/guide/installation/) as it will automatically provision a Python environment with the expected Python version.
 
 After installing Rye, you'll just have to run this command: