test(smoke): snapshot all five role-group ConfigMaps

Adds full .data snapshots for druid-{broker,coordinator,historical,
middlemanager,router}-default ConfigMaps. The actual side is
normalized for namespace and the random znode UUID before diffing.
The current snapshot was captured with VECTOR_AGGREGATOR unset.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: maltesander