In #83808, new typings were introduced for the ES client.

There were a few places where @ts-expect-error was added to our plugins. This is likely a problem in our code that should be addressed. If we find it is a problem in the client code, it should be reported to https://github.com/elastic/elastic-client-generator/issues/new/choose.

Known places:

1. ILM - register_fetch_route.ts

// @ts-expect-error Policy doesn't contain name property

2. Data streams - register_get_route.ts

// @ts-expect-error PrivilegesFromEs incompatible with ApplicationsPrivileges

3. Painless Lab - execute.ts

// @ts-expect-error `ExecutePainlessScriptRequest.body` does not allow `string`

3. Painless Lab - execute.ts

// @ts-expect-error `ExecutePainlessScriptRequest.body` does not allow `string`

4. Snapshot Restore (once [Snapshot Restore] Migrate to new ES client #95499 is merged)
   See the TODO comments in these files:

• x-pack/plugins/snapshot_restore/server/routes/api/policy.ts
• x-pack/plugins/snapshot_restore/server/routes/api/repositories.ts
• x-pack/plugins/snapshot_restore/server/routes/api/restore.ts
• x-pack/plugins/snapshot_restore/server/routes/api/policy.ts (Update @elastic/elasticsearch to 8.0.0-canary13 #98266)