Reference jmtd fork of behave-test-steps

The jmtd fork of behave-test-steps has its v1 branch matching this
PR: cekit/behave-test-steps#50

This adds a multiprocess watchdog around invoking
`docker.APIClient.exec_inspect`, which will abort the current step
if that call has not returned within 30 seconds.

This means a lock-up during a step will cause that test to fail and
not the whole test run.

Signed-off-by: Jonathan Dowland <[email protected]>

.github/workflows/image-workflow-template.yml

@@ -42,4 +42,4 @@ jobs:
       - name: Behave Tests
         run: |
           echo /home/runner/work/_temp/openshift-bin >> $GITHUB_PATH
-          cekit -v --descriptor ${{ inputs.image }}.yaml test behave
+          cekit -v --descriptor ${{ inputs.image }}.yaml test behave --steps-url https://github.com/jmtd/behave-test-steps