Automatic merge from submit-queue (batch tested with PRs 55637, 57461, 60268, 60290, 60210). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Autoscaler e2e - fix getting initial pool size

**What this PR does / why we need it**:
Fixes gcloud commands when getting initial pool size in e2e autoscaler tests. Adds logging to make test easier to debug.

**Release note**:

```
NONE
```