…esponses (elastic#188632)

(cherry picked from commit a8091ab)

…s for responses (#188632) (#190545)

# Backport

This will backport the following commits from `main` to `8.15`:
- [[OAS/HTTP] Empty response bodies (status only) and descriptions for
responses (#188632)](#188632)

<!--- Backport version: 8.9.8 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT [{"author":{"name":"Jean-Louis
Leysens","email":"jeanlouis.leysens@elastic.co"},"sourceCommit":{"committedDate":"2024-07-22T13:29:15Z","message":"[OAS/HTTP]
Empty response bodies (status only) and descriptions for responses
(#188632)\n\n## Summary\r\n\r\n* Adds the ability to exclude a response
schema when declaring route\r\nschemas\r\n* Adds the ability to provide
a description of a the response\r\n\r\nSee code comments for more
info.\r\n\r\n## Example\r\n\r\nYou can declare a response with no
validation to imply an empty object\r\nin
OAS\r\n\r\n```\r\nrouter.versioned.post({ version: '2023-10-31', access:
'public', path: '...' })\r\n .addVersion({\r\n validation: {\r\n
responses: {\r\n 201: { description: 'Resource created!' }\r\n }\r\n
}\r\n }, () => {})\r\n```\r\n\r\nWill result in\r\n\r\n```jsonc\r\n{\r\n
//...\r\n 201: { description: 'Resource created!' }\r\n
//...\r\n}\r\n```\r\n\r\n## Risks\r\n\r\nNo notable
risks","sha":"a8091ab0acff6f8fae2cbe19c273048fb2734632","branchLabelMapping":{"^v8.16.0$":"main","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["Feature:http","Team:Core","release_note:skip","backport:skip","v8.15.0","Feature:OAS","v8.16.0"],"number":188632,"url":"https://github.com/elastic/kibana/pull/188632","mergeCommit":{"message":"[OAS/HTTP]
Empty response bodies (status only) and descriptions for responses
(#188632)\n\n## Summary\r\n\r\n* Adds the ability to exclude a response
schema when declaring route\r\nschemas\r\n* Adds the ability to provide
a description of a the response\r\n\r\nSee code comments for more
info.\r\n\r\n## Example\r\n\r\nYou can declare a response with no
validation to imply an empty object\r\nin
OAS\r\n\r\n```\r\nrouter.versioned.post({ version: '2023-10-31', access:
'public', path: '...' })\r\n .addVersion({\r\n validation: {\r\n
responses: {\r\n 201: { description: 'Resource created!' }\r\n }\r\n
}\r\n }, () => {})\r\n```\r\n\r\nWill result in\r\n\r\n```jsonc\r\n{\r\n
//...\r\n 201: { description: 'Resource created!' }\r\n
//...\r\n}\r\n```\r\n\r\n## Risks\r\n\r\nNo notable
risks","sha":"a8091ab0acff6f8fae2cbe19c273048fb2734632"}},"sourceBranch":"main","suggestedTargetBranches":["8.15"],"targetPullRequestStates":[{"branch":"8.15","label":"v8.15.0","labelRegex":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"state":"NOT_CREATED"},{"branch":"main","label":"v8.16.0","labelRegex":"^v8.16.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/188632","number":188632,"mergeCommit":{"message":"[OAS/HTTP]
Empty response bodies (status only) and descriptions for responses
(#188632)\n\n## Summary\r\n\r\n* Adds the ability to exclude a response
schema when declaring route\r\nschemas\r\n* Adds the ability to provide
a description of a the response\r\n\r\nSee code comments for more
info.\r\n\r\n## Example\r\n\r\nYou can declare a response with no
validation to imply an empty object\r\nin
OAS\r\n\r\n```\r\nrouter.versioned.post({ version: '2023-10-31', access:
'public', path: '...' })\r\n .addVersion({\r\n validation: {\r\n
responses: {\r\n 201: { description: 'Resource created!' }\r\n }\r\n
}\r\n }, () => {})\r\n```\r\n\r\nWill result in\r\n\r\n```jsonc\r\n{\r\n
//...\r\n 201: { description: 'Resource created!' }\r\n
//...\r\n}\r\n```\r\n\r\n## Risks\r\n\r\nNo notable
risks","sha":"a8091ab0acff6f8fae2cbe19c273048fb2734632"}}]}] BACKPORT-->

Co-authored-by: Jean-Louis Leysens <jeanlouis.leysens@elastic.co>