* [Rule Tunings] AWS RDS Rules
#### AWS RDS DB Instance Made Public
- updated description and investigation guide
- added highlighted fields
#### AWS RDS DB Instance or Cluster Deletion Protection Disabled
- updated description and investigation guide
- added highlighted fields
#### AWS RDS Snapshot Deleted
- excluded `backup.amazonaws.com` as this is expected behavior. This exclusion reduces noise in telemetry by ~77%
- updated description and investigation guide
- added highlighted fields
#### AWS Deletion of RDS Instance or Cluster > AWS RDS DB Instance or Cluster Deleted
- reduced execution window
- slight name change to align with other rules
- updated description and investigation guide
- added highlighted fields
#### AWS RDS DB Instance Restored
- `event.type` used for `event_category_override` because event.category is not mapped for these API calls
- updated description and investigation guide
- added highlighted fields
#### AWS RDS DB Instance or Cluster Password Modified
- `event.type` used for `event_category_override` because event.category is not mapped for these API calls
- updated description and investigation guide
- added highlighted fields
#### AWS RDS Snapshot Export
- reduced execution window
- updated mitre mapping
- updated description and investigation guide
- added highlighted fields
* rule type change from eql to kql
changing rule type to kql since there's not eql specific functions needed for the query
* [Tuning] AWS RDS Instance Restored
-name and description change to better describe behavior
- rule file name changed to match tactic
- query change to add coverage for restore from S3
- rule type changed to eql
- subtechnique added for creaing instance
- tag added for RDS datasource
- Investigation Guide added
* Update defense_evasion_rds_instance_restored.toml
* Update defense_evasion_rds_instance_restored.toml
* removed investigation guide place holder
* deprecated old rule because of name change
* change rule_id
* Revert "change rule_id"
This reverts commit 0764c932f412439319e2d15a6bd80c360cf3fdc2.
* Revert "deprecated old rule because of name change"
This reverts commit fd62673380b40ba9ee432a271da3a8c5374e7129.
Isai