Merge branch 'main' of github.com:cloudposse/github-action-docker-build into main

* 'main' of github.com:cloudposse/github-action-docker-build:
  Add renovate.json (#1)

Author: goruha

renovate.json

@@ -0,0 +1,6 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:base"
+  ]
+}