[Response Ops][Reporting] Scheduled Reports (#221028)

Resolves https://github.com/elastic/kibana/issues/216313

## Summary

This is a feature branch that contains the following commits. Each
individual linked PR contains a summary and verification instructions.

* Schedule API - https://github.com/elastic/kibana/pull/219771
* Scheduled report task runner -
https://github.com/elastic/kibana/pull/219770
* List and disable API - https://github.com/elastic/kibana/pull/220922
* Audit logging - https://github.com/elastic/kibana/pull/221846
* Send scheduled report emails -
https://github.com/elastic/kibana/pull/220539
* Commit to check license -
f5f9d9daed
* Update to list API response format -
https://github.com/elastic/kibana/pull/224262

---------

Co-authored-by: Ersin Erdal <ersin.erdal@elastic.co>
Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
Co-authored-by: Ersin Erdal <92688503+ersin-erdal@users.noreply.github.com>
Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>
Co-authored-by: Alexi Doak <109488926+doakalexi@users.noreply.github.com>

packages/kbn-check-mappings-update-cli/current_fields.json

@@ -958,6 +958,9 @@
     "installCount",
     "unInstallCount"
   ],
+  "scheduled_report": [
+    "createdBy"
+  ],
   "search": [
     "description",
     "title"

packages/kbn-check-mappings-update-cli/current_mappings.json

@@ -3119,6 +3119,14 @@
       }
     }
   },
+  "scheduled_report": {
+    "dynamic": false,
+    "properties": {
+      "createdBy": {
+        "type": "keyword"
+      }
+    }
+  },
   "search": {
     "dynamic": false,
     "properties": {