[CI] mixed_cluster/80_data_frame_jobs_crud failure

[romseygeek]

#48019 changed transforms to return an error if they are run in a mixed cluster with a node of version less than 7.4.0. However, UpgradeClusterClientYamlTestSuiteIT can occasionally pick versions older than this to run rolling upgrade tests, in which case mixed_cluster/80_data_frame_jobs_crud/Test put batch data frame transforms on mixed cluster will fail.

[elasticmachine]

Pinging @elastic/ml-core (:ml/Transform)

[hendrikmuhs]

This is a regression of #48116. The tests are currently disabled for 7.x as well as 7.5, that's why the problem only happens in the 7.4 branch.

[hendrikmuhs]

fixed with #48239