Flaky IT: ITNestedQueryPushDownTest integration test

[paul-rogers]

The following test failed in this build:

38713.94 (Compile=openjdk8, Run=openjdk8, Cluster Build On K8s) ITNestedQueryPushDownTest integration test

Error:

No output has been received in the last 10m0s, this potentially indicates a stalled build or something wrong with the build itself.

The PR that failed changed the planner, but not the execution path which is likely where the delay happened. There is likely something wrong with the test itself.

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