Grouping agent dependencies (#22)

Author: LikeTheSalad

renovate.json

@@ -2,5 +2,14 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
     "local>elastic/renovate-config"
+  ],
+  "packageRules": [
+    {
+      "matchPackageNames": [
+        "co.elastic.otel.android.**"
+      ],
+      "ignoreUnstable": false,
+      "groupName": "elastic-agent"
+    }
   ]
 }