Revert "Temporarily to remove stable compat jobs on taskflow"

This was only temporary to unwedge things in the gate, since that's
been finally done we can add this check back to prevent the situation
from happening again.

This reverts commit 2f8b1012bdd84151cc8a2f877ba22eb5d27d3662.

Change-Id: I8b02626aad890551b17a18588ca7d8fc1b859c71
Merge "Revert "Temporarily to remove stable compat jobs on taskflow""