chore: add Renovate

Signed-off-by: Niccolò Fei <[email protected]>

Author: NiccoloFei

renovate.json

@@ -0,0 +1,10 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:recommended",
+    "docker:pinDigests"
+  ],
+  "enabledManagers": [
+    "github-actions"
+  ]
+}