[8.11] [Synthetics] Update package to 1.1.0 in tests (#168188) (#168203)

# Backport

This will backport the following commits from `main` to `8.11`:
- [[Synthetics] Update package to 1.1.0 in tests
(#168188)](#168188)

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

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

<!--BACKPORT
[{"author":{"name":"Shahzad","email":"[email protected]"},"sourceCommit":{"committedDate":"2023-10-06T10:46:41Z","message":"[Synthetics]
Update package to 1.1.0 in tests
(#168188)","sha":"447d3101cc691c3b81a1c8bc4e12e73b8d294264","branchLabelMapping":{"^v8.12.0$":"main","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:skip","v8.11.0","v8.12.0"],"number":168188,"url":"https://github.com/elastic/kibana/pull/168188","mergeCommit":{"message":"[Synthetics]
Update package to 1.1.0 in tests
(#168188)","sha":"447d3101cc691c3b81a1c8bc4e12e73b8d294264"}},"sourceBranch":"main","suggestedTargetBranches":["8.11"],"targetPullRequestStates":[{"branch":"8.11","label":"v8.11.0","labelRegex":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"state":"NOT_CREATED"},{"branch":"main","label":"v8.12.0","labelRegex":"^v8.12.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/168188","number":168188,"mergeCommit":{"message":"[Synthetics]
Update package to 1.1.0 in tests
(#168188)","sha":"447d3101cc691c3b81a1c8bc4e12e73b8d294264"}}]}]
BACKPORT-->

Co-authored-by: Shahzad <[email protected]>

x-pack/test/api_integration/apis/synthetics/services/private_location_test_service.ts

@@ -10,7 +10,7 @@ import { privateLocationsSavedObjectId } from '@kbn/synthetics-plugin/server/sav
 import { FtrProviderContext } from '../../../ftr_provider_context';
 import { KibanaSupertestProvider } from '../../../../../../test/api_integration/services/supertest';
 
-export const INSTALLED_VERSION = '1.0.7';
+export const INSTALLED_VERSION = '1.1.0';
 
 export class PrivateLocationTestService {
   private supertest: ReturnType<typeof KibanaSupertestProvider>;