Configure Renovate (#17)

* Add renovate.json

* Configure Renovate

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: sgt0 <140186177+sgt0@users.noreply.github.com>

Author: renovate[bot]

.github/renovate.json

@@ -0,0 +1,8 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": ["config:best-practices", ":disableDependencyDashboard"],
+  "nix": {
+    "enabled": true
+  },
+  "rangeStrategy": "bump"
+}