[8.15] Bump maximum supported package spec version to 3.2 (#193574) (#…

…193727)

# Backport

This will backport the following commits from `main` to `8.15`:
- [Bump maximum supported package spec version to 3.2
(#193574)](#193574)

<!--- Backport version: 9.4.3 -->

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

<!--BACKPORT [{"author":{"name":"Jaime Soriano
Pastor","email":"[email protected]"},"sourceCommit":{"committedDate":"2024-09-23T14:23:42Z","message":"Bump
maximum supported package spec version to 3.2 (#193574)\n\nUpdate
maximum supported spec version to 3.2, as done for serverless
in\r\nhttps://github.com//pull/192493.\r\n\r\nFix
https://github.com/elastic/kibana/issues/193289","sha":"9f67292bcad0e48692754a81d5e3dfe3793e8b2d","branchLabelMapping":{"^v9.0.0$":"main","^v8.16.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:enhancement","Team:Fleet","v9.0.0","backport:prev-major"],"title":"Bump
maximum supported package spec version to
3.2","number":193574,"url":"https://github.com/elastic/kibana/pull/193574","mergeCommit":{"message":"Bump
maximum supported package spec version to 3.2 (#193574)\n\nUpdate
maximum supported spec version to 3.2, as done for serverless
in\r\nhttps://github.com//pull/192493.\r\n\r\nFix
https://github.com/elastic/kibana/issues/193289","sha":"9f67292bcad0e48692754a81d5e3dfe3793e8b2d"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v9.0.0","branchLabelMappingKey":"^v9.0.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/193574","number":193574,"mergeCommit":{"message":"Bump
maximum supported package spec version to 3.2 (#193574)\n\nUpdate
maximum supported spec version to 3.2, as done for serverless
in\r\nhttps://github.com//pull/192493.\r\n\r\nFix
https://github.com/elastic/kibana/issues/193289","sha":"9f67292bcad0e48692754a81d5e3dfe3793e8b2d"}}]}]
BACKPORT-->

Co-authored-by: Jaime Soriano Pastor <[email protected]>

x-pack/plugins/fleet/server/config.ts

@@ -25,7 +25,7 @@ import { BULK_CREATE_MAX_ARTIFACTS_BYTES } from './services/artifacts/artifacts'
 const DEFAULT_BUNDLED_PACKAGE_LOCATION = path.join(__dirname, '../target/bundled_packages');
 const DEFAULT_GPG_KEY_PATH = path.join(__dirname, '../target/keys/GPG-KEY-elasticsearch');
 
-const REGISTRY_SPEC_MAX_VERSION = '3.0';
+const REGISTRY_SPEC_MAX_VERSION = '3.2';
 
 export const config: PluginConfigDescriptor = {
   exposeToBrowser: {