Configure Renovate (#18)

* Add renovate.json

* Do not update embedded-hal-old

* Remove dependabot

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Max Wase <ta.ma.24651@gmail.com>
Co-authored-by: Max Wase <max.vvase@gmail.com>

Author: renovate[bot]

.github/dependabot.yml

@@ -0,0 +1,7 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:recommended"
+  ],
+  "ignoreDeps": ["embedded-hal-old"]
+}