[8.6] [FTRs] Execution Context: fix no data flakiness (#149406) (#149425

)

# Backport

This will backport the following commits from `main` to `8.6`:
- [[FTRs] Execution Context: fix no data flakiness
(#149406)](#149406)

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

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

<!--BACKPORT [{"author":{"name":"Alejandro Fernández
Haro","email":"[email protected]"},"sourceCommit":{"committedDate":"2023-01-24T14:03:37Z","message":"[FTRs]
Execution Context: fix no data flakiness (#149406)\n\nResolves
https://github.com/elastic/kibana/issues/112102","sha":"09c11131271bec1b794d5a472294e6e125116f4d","branchLabelMapping":{"^v8.7.0$":"main","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["Team:Core","release_note:skip","backport:all-open","v8.7.0"],"number":149406,"url":"https://github.com/elastic/kibana/pull/149406","mergeCommit":{"message":"[FTRs]
Execution Context: fix no data flakiness (#149406)\n\nResolves
https://github.com/elastic/kibana/issues/112102","sha":"09c11131271bec1b794d5a472294e6e125116f4d"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v8.7.0","labelRegex":"^v8.7.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/149406","number":149406,"mergeCommit":{"message":"[FTRs]
Execution Context: fix no data flakiness (#149406)\n\nResolves
https://github.com/elastic/kibana/issues/112102","sha":"09c11131271bec1b794d5a472294e6e125116f4d"}},{"url":"https://github.com/elastic/kibana/pull/149417","number":149417,"branch":"7.17","state":"OPEN"}]}]
BACKPORT-->