[9.1] Fix EsqlActionIT.testGroupingStatsOnMissingFields in release tests (#130177)#130183

elasticsearchmachine merged 2 commits intoelastic:9.1elastic/elasticsearch:9.1from

luigidellaquila:backport/9.1/pr-130177luigidellaquila/elasticsearch:backport/9.1/pr-130177Copy head branch name to clipboard