[8.6] change file namespace type to multiple-isolated (#147198) (#147436

)

# Backport

This will backport the following commits from `main` to `8.6`:
- [change file namespace type to multiple-isolated
(#147198)](#147198)

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

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

<!--BACKPORT [{"author":{"name":"Vadim
Kibana","email":"[email protected]"},"sourceCommit":{"committedDate":"2022-12-13T13:24:40Z","message":"change
file namespace type to multiple-isolated (#147198)\n\n##
Summary\r\n\r\nChanges file saved object namespace to
`multiple-isolated`.\r\n\r\nCo-authored-by: Kibana Machine
<[email protected]>","sha":"0aa6e1c398ee5945bb9f9dd250dc6f19fad9f561","branchLabelMapping":{"^v8.7.0$":"main","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["backport","release_note:fix","auto-backport","v8.6.0","v8.7.0","v8.6.1"],"number":147198,"url":"https://github.com/elastic/kibana/pull/147198","mergeCommit":{"message":"change
file namespace type to multiple-isolated (#147198)\n\n##
Summary\r\n\r\nChanges file saved object namespace to
`multiple-isolated`.\r\n\r\nCo-authored-by: Kibana Machine
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file namespace type to multiple-isolated (#147198)\n\n##
Summary\r\n\r\nChanges file saved object namespace to
`multiple-isolated`.\r\n\r\nCo-authored-by: Kibana Machine
<[email protected]>","sha":"0aa6e1c398ee5945bb9f9dd250dc6f19fad9f561"}}]}]
BACKPORT-->

Co-authored-by: Vadim Kibana <[email protected]>

src/core/server/integration_tests/saved_objects/migrations/check_registered_types.test.ts

@@ -85,7 +85,7 @@ describe('checking migration metadata changes on all registered SO types', () =>
         "event_loop_delays_daily": "d2ed39cf669577d90921c176499908b4943fb7bd",
         "exception-list": "fe8cc004fd2742177cdb9300f4a67689463faf9c",
         "exception-list-agnostic": "49fae8fcd1967cc4be45ba2a2c66c4afbc1e341b",
-        "file": "05c14a75e5e20b12ca514a1d7de231f420facf2c",
+        "file": "f5d393602a4c103eb0ace983e6810f7f3666544b",
         "file-upload-usage-collection-telemetry": "8478924cf0057bd90df737155b364f98d05420a5",
         "fileShare": "3f88784b041bb8728a7f40763a08981828799a75",
         "fleet-fleet-server-host": "f00ca963f1bee868806319789cdc33f1f53a97e2",

src/plugins/files/server/saved_objects/file.ts

@@ -51,7 +51,7 @@ const properties: Properties = {
 export const fileObjectType: SavedObjectsType<FileMetadata> = {
   name: FILE_SO_TYPE,
   hidden: true,
-  namespaceType: 'agnostic',
+  namespaceType: 'multiple-isolated',
   management: {
     importableAndExportable: false,
   },