[IRONSCALES] - Fix Cannot execute ILM policy delete step

[akshraj-crest]

PR Description:

This PR focuses on the short term solution which add the logs-ironscales.incident-* indice under the kibana_system role with deletion privileges to prevent a failed deletion error when the index enters the deletion phase for the ILM lifecycle, in upcoming PR. As it ships transform pipeline too hence read, write permissions are also required.

Current behavior:

It shows permission issue while deleting the index.

Closes - #138093