chore: update renovate config

renovate.json

 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
-    "local>systemes-dinformation/renovate/renovate-config"
+  "extends": ["local>systemes-dinformation/renovate/renovate-config"],
+  "labels": ["dependencies"],
+  "packageRules": [
+    {
+      "matchPackagePatterns": ["eslint"],
+      "labels": ["linting"]
+    },
+    {
+      "matchDepTypes": ["optionalDependencies"],
+      "addLabels": ["optional"]
+    }
   ]
 }