chore: Configure Renovate (#2)

* chore(deps): add renovate.json

* Update renovate.json

---------

Co-authored-by: renovate-self-hosted-apter[bot] <123806997+renovate-self-hosted-apter[bot]@users.noreply.github.com>
Co-authored-by: Balázs Varga <balazs.varga@apter.tech>

Author: renovate-self-hosted-apter[bot]

renovate.json

@@ -0,0 +1,6 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "github>apter-tech/renovate-config#v0.7.0"
+  ]
+}