use rolling restart of pods for rosa scaling benchmark

[kami619]

• using rolling restart to reset memory of the pods after the dataset creation
• plugged it into the github workflow

I ran it on my github fork here are the results : https://github.com/kami619/keycloak-benchmark/actions/runs/9098888946/job/25010163982

fixes #799

[kami619]

Here is a sample output of the script, thats run from my local.

INFO:2024-05-15-11:36:52-EDT Deleting all Keycloak pods in sequence
NAME         READY   STATUS    RESTARTS   AGE
keycloak-0   1/1     Running   0          6m24s
keycloak-1   1/1     Running   0          6m3s
keycloak-2   1/1     Running   0          5m41s
INFO:2024-05-15-11:36:54-EDT Killing Pod 'keycloak-0'
pod "keycloak-0" deleted
deployment.apps/keycloak-operator condition met
keycloak.k8s.keycloak.org/keycloak condition met
INFO:2024-05-15-11:37:14-EDT Keycloak pod keycloak-0 took 18 seconds to recover
NAME         READY   STATUS    RESTARTS   AGE
keycloak-0   1/1     Running   0          19s
keycloak-1   1/1     Running   0          6m24s
keycloak-2   1/1     Running   0          6m2s
INFO:2024-05-15-11:37:15-EDT Killing Pod 'keycloak-1'
pod "keycloak-1" deleted
deployment.apps/keycloak-operator condition met
keycloak.k8s.keycloak.org/keycloak condition met
INFO:2024-05-15-11:37:35-EDT Keycloak pod keycloak-1 took 19 seconds to recover
NAME         READY   STATUS    RESTARTS   AGE
keycloak-0   1/1     Running   0          39s
keycloak-1   1/1     Running   0          19s
keycloak-2   1/1     Running   0          6m22s
INFO:2024-05-15-11:37:35-EDT Killing Pod 'keycloak-2'
pod "keycloak-2" deleted
deployment.apps/keycloak-operator condition met
jfbkeycloak.k8s.keycloak.org/keycloak condition met
INFO:2024-05-15-11:37:56-EDT Keycloak pod keycloak-2 took 19 seconds to recover
NAME         READY   STATUS    RESTARTS   AGE
keycloak-0   1/1     Running   0          60s
keycloak-1   1/1     Running   0          40s
keycloak-2   1/1     Running   0          19s
INFO:2024-05-15-11:37:56-EDT All Keycloak pods have been processed.

[ahus1]

Thank you for the updated scripts and the link to the test run!