[8.x] Update data archives for SO integration tests (#204561) (#204581)

# Backport

This will backport the following commits from `main` to `8.x`:
- [Update data archives for SO integration tests
(#204561)](#204561)

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

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

<!--BACKPORT [{"author":{"name":"Alejandro Fernández
Haro","email":"alejandro.haro@elastic.co"},"sourceCommit":{"committedDate":"2024-12-17T14:18:48Z","message":"Update
data archives for SO integration tests (#204561)\n\n##
Summary\n\nBumping the data archives to 8.last (8.18 at the moment) so
that ES 9.0\nfinds it compatible.\n\nResolves #158318.\nResolves
#163254.\nResolves #163255.\nResolves #166190.\nResolves
#166199.\nResolves
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data archives for SO integration
tests","number":204561,"url":"https://github.com/elastic/kibana/pull/204561","mergeCommit":{"message":"Update
data archives for SO integration tests (#204561)\n\n##
Summary\n\nBumping the data archives to 8.last (8.18 at the moment) so
that ES 9.0\nfinds it compatible.\n\nResolves #158318.\nResolves
#163254.\nResolves #163255.\nResolves #166190.\nResolves
#166199.\nResolves
#167676.","sha":"523372fd6e3c04134f70c9fc05ead121b6922181"}},"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/204561","number":204561,"mergeCommit":{"message":"Update
data archives for SO integration tests (#204561)\n\n##
Summary\n\nBumping the data archives to 8.last (8.18 at the moment) so
that ES 9.0\nfinds it compatible.\n\nResolves #158318.\nResolves
#163254.\nResolves #163255.\nResolves #166190.\nResolves
#166199.\nResolves
#167676.","sha":"523372fd6e3c04134f70c9fc05ead121b6922181"}}]}]
BACKPORT-->

Co-authored-by: Alejandro Fernández Haro <alejandro.haro@elastic.co>

src/core/server/integration_tests/saved_objects/migrations/group3/actions/actions_test_suite.ts

@@ -770,10 +770,9 @@ export const runActionTestSuite = ({
     });
   });
 
-  // Reindex doesn't return any errors on it's own, so we have to test
+  // Reindex doesn't return any errors on its own, so we have to test
   // together with waitForReindexTask
-  // Failing: See https://github.com/elastic/kibana/issues/166190
-  describe.skip('reindex & waitForReindexTask', () => {
+  describe('reindex & waitForReindexTask', () => {
     it('resolves right when reindex succeeds without reindex script', async () => {
       const res = (await reindex({
         client,
@@ -1444,8 +1443,7 @@ export const runActionTestSuite = ({
     });
   });
 
-  // FLAKY: https://github.com/elastic/kibana/issues/166199
-  describe.skip('waitForPickupUpdatedMappingsTask', () => {
+  describe('waitForPickupUpdatedMappingsTask', () => {
     it('rejects if there are failures', async () => {
       const res = (await pickupUpdatedMappings(
         client,