chore: slow down renovate prs (#91)

Fixes #

### TL;DR

Make renovate only make pull requests every sunday to reduce extra ci run that have to happen

renovate.json

@@ -1,6 +1,4 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
-    "config:recommended"
-  ]
+  "extends": ["config:recommended", "every sunday"]
 }