chore: Add changelog entry

Author: Techassi

CHANGELOG.md

@@ -13,11 +13,13 @@
 
 ### Changed
 
+- Bump stackable-operator to `0.100.1` ([#705]).
 - Changed env-vars to be consistent with config-utils in the entrypoint script ([#700]).
 
 [#691]: https://github.com/stackabletech/hbase-operator/pull/691
 [#697]: https://github.com/stackabletech/hbase-operator/pull/697
 [#700]: https://github.com/stackabletech/hbase-operator/pull/700
+[#705]: https://github.com/stackabletech/hbase-operator/pull/705
 
 ## [25.7.0] - 2025-07-23