Oc client version on scale-ci-workload image needs to match oc server version

[wabouhamad]

Noticing different outputs from oc client running inside the scale-ci-workload pod, vs. the one that was downloaded from the https://openshift-release-artifacts.svc.ci.openshift.org/4.2.0-rc.5/ , which is what my oc server version.

Output differences (also see below):
No resources found in cakephp-mysql0 namespace.
vs
No resources found.

Image ID: quay.io/openshift-scale/scale-ci-workload@sha256:bc2f318694b8006ae6656b6e041608579c00ed37d89623264e3a54fe169580c2

Before updating the oc client manually inside the workloads pod:

# oc version
Client Version: v4.2.0-alpha.0-198-g3780d2d
Server Version: 4.2.0-rc.5
Kubernetes Version: v1.14.6+2e5ed54
# oc  get pods --no-headers --show-labels -n cakephp-mysql0 -l deploymentconfig=cakephp-mysql-example
No resources found in cakephp-mysql0 namespace.

After updating the oc client manually inside the workloads pod:

# oc version
Client Version: openshift-clients-4.2.0-201910041700
Server Version: 4.2.0-rc.5
Kubernetes Version: v1.14.6+2e5ed54

# oc get pods --no-headers --show-labels -n cakephp-mysql0 -l deploymentconfig=cakephp-mysql-example
No resources found.