[8.6] [Alert Summaries] [BE] Move “Notify When” and throttle from rule to action (#144130)

[kibanamachine]

Backport

This will backport the following commits from main to 8.6:

• [Alert Summaries] [BE] Move “Notify When” and throttle from rule to action (#144130)

Questions ?

Please refer to the Backport tool documentation

[kibana-ci]

💚 Build Succeeded

• Buildkite Build
• Commit: 205a43c

Metrics [docs]

Public APIs missing comments

Total count of every public API that lacks a comment. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats comments for more detailed information.

id	before	after	diff
alerting	406	408	+2
triggersActionsUi	501	502	+1
total			+3

Page load bundle

Size of the bundles that are downloaded on every page load. Target size is below 100kb

id	before	after	diff
alerting	39.2KB	39.2KB	+57.0B

Unknown metric groups

API count

id	before	after	diff
alerting	415	417	+2
triggersActionsUi	530	531	+1
total			+3

ESLint disabled in files

id	before	after	diff
osquery	1	2	+1

ESLint disabled line counts

id	before	after	diff
enterpriseSearch	19	21	+2
fleet	59	65	+6
osquery	108	113	+5
securitySolution	441	447	+6
total			+19

Total ESLint disabled count

id	before	after	diff
enterpriseSearch	20	22	+2
fleet	67	73	+6
osquery	109	115	+6
securitySolution	518	524	+6
total			+20

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

cc @Zacqary