[8.10] [Cases] Add max alerts per case to docs (#164141) (#164160)

# Backport

This will backport the following commits from `main` to `8.10`:
- [[Cases] Add max alerts per case to docs
(#164141)](#164141)

<!--- Backport version: 8.9.7 -->

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

<!--BACKPORT [{"author":{"name":"Janki
Salvi","email":"[email protected]"},"sourceCommit":{"committedDate":"2023-08-17T10:48:30Z","message":"[Cases]
Add max alerts per case to docs (#164141)\n\n## Summary\r\n\r\nAdded
docs for total alerts per case guardrails as
per\r\nhttps://github.com//issues/146945\r\n\r\n|
Description | Limit | Done? | Documented? | UI?\r\n| ------------- |
---- | :---: | ---- | :----: |\r\n| Total alerts per case | 1.000 |
✅ | Yes | N/A
|","sha":"18d28fc42c6107bedaf98161c6b2c9e7b522237b","branchLabelMapping":{"^v8.10.0$":"main","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:skip","Team:ResponseOps","Feature:Cases","v8.10.0","v8.11.0"],"number":164141,"url":"https://github.com/elastic/kibana/pull/164141","mergeCommit":{"message":"[Cases]
Add max alerts per case to docs (#164141)\n\n## Summary\r\n\r\nAdded
docs for total alerts per case guardrails as
per\r\nhttps://github.com//issues/146945\r\n\r\n|
Description | Limit | Done? | Documented? | UI?\r\n| ------------- |
---- | :---: | ---- | :----: |\r\n| Total alerts per case | 1.000 |
✅ | Yes | N/A
|","sha":"18d28fc42c6107bedaf98161c6b2c9e7b522237b"}},"sourceBranch":"main","suggestedTargetBranches":["8.11"],"targetPullRequestStates":[{"branch":"main","label":"v8.10.0","labelRegex":"^v8.10.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/164141","number":164141,"mergeCommit":{"message":"[Cases]
Add max alerts per case to docs (#164141)\n\n## Summary\r\n\r\nAdded
docs for total alerts per case guardrails as
per\r\nhttps://github.com//issues/146945\r\n\r\n|
Description | Limit | Done? | Documented? | UI?\r\n| ------------- |
---- | :---: | ---- | :----: |\r\n| Total alerts per case | 1.000 |
✅ | Yes | N/A
|","sha":"18d28fc42c6107bedaf98161c6b2c9e7b522237b"}},{"branch":"8.11","label":"v8.11.0","labelRegex":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"state":"NOT_CREATED"}]}]
BACKPORT-->

Co-authored-by: Janki Salvi <[email protected]>

x-pack/plugins/cases/docs/openapi/bundled.json

@@ -5471,7 +5471,8 @@
             "type": "array",
             "items": {
               "type": "string"
-            }
+            },
+            "maxItems": 1000
           }
         ],
         "x-technical-preview": true,
@@ -5488,7 +5489,8 @@
             "type": "array",
             "items": {
               "type": "string"
-            }
+            },
+            "maxItems": 1000
           }
         ],
         "x-technical-preview": true

x-pack/plugins/cases/docs/openapi/bundled.yaml

@@ -3532,6 +3532,7 @@ components:
         - type: array
           items:
             type: string
+          maxItems: 1000
       x-technical-preview: true
       example: 6b24c4dc44bc720cfc92797f3d61fff952f2b2627db1fb4f8cc49f4530c4ff42
     alert_indices:
@@ -3543,6 +3544,7 @@ components:
         - type: array
           items:
             type: string
+          maxItems: 1000
       x-technical-preview: true
     rule:
       title: Alerting rule

x-pack/plugins/cases/docs/openapi/components/schemas/alert_identifiers.yaml

@@ -11,5 +11,6 @@ oneOf:
   - type: array
     items:
       type: string
+    maxItems: 1000
 x-technical-preview: true
 example: 6b24c4dc44bc720cfc92797f3d61fff952f2b2627db1fb4f8cc49f4530c4ff42

x-pack/plugins/cases/docs/openapi/components/schemas/alert_indices.yaml

@@ -12,4 +12,5 @@ oneOf:
   - type: array
     items:
       type: string
+    maxItems: 1000
 x-technical-preview: true