Adding rosa & ocm clis used for workers-scale (#657)

* Adding rosa cli used for workers-scale

* Adding ocm cli too

* Updated commands to match the order

* Updating rosa cli perms as well

Author: vishnuchalla

prow/Dockerfile

@@ -3,7 +3,12 @@ FROM quay.io/openshifttest/python:3.9
 LABEL vendor="Red Hat Inc." maintainer="OCP QE Team"
 
 RUN curl -sSL https://mirror.openshift.com/pub/openshift-v4/clients/ocp/stable/openshift-client-linux-amd64-rhel8.tar.gz | tar -xvzf -  &&\
-    mv kubectl /bin 
+    mv kubectl /bin
 
 RUN apt-get update && apt-get install -y gettext-base uuid-runtime jq openssh-client sshpass && \
     ln -s /bin/bash /usr/bin/bash && /usr/local/bin/python -m pip install --upgrade pip && pip install virtualenv jq
+
+RUN curl -sSL $(curl -sSL https://api.github.com/repos/openshift/rosa/releases/latest | jq -r ".assets[] | select(.name == \"rosa_Linux_x86_64.tar.gz\") | .browser_download_url") | tar xvzf - &&\
+    mv rosa /bin && chmod 777 /bin/rosa
+
+RUN curl -sSL $(curl -sSL https://api.github.com/repos/openshift-online/ocm-cli/releases/latest | jq -r ".assets[] | select(.name == \"ocm-linux-amd64\") | .browser_download_url") --output /bin/ocm && chmod 777 /bin/ocm