Merge branch 'renovate/configure' into 'main'

Configure Renovate

See merge request docusaurus-template!4

renovate.json

+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:base",
+    "local>fit-connect/renovate/renovate-config"
+  ]
+}