chore: update renovate.json

Signed-off-by: Alan Brault <alan.brault@visus.io>

Author: xaevik

.github/renovate.json

@@ -0,0 +1,9 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "local>visus-io/renovate-config"
+  ],
+  "constraints": {
+    "php": "<8.5"
+  }
+}