[multiple] Consolidate operator_namespace var to group_vars

[amartyasinha]

Move all the definitions and hardcoding of operator_namespace so that it can be easily changed and managed from group_vars.

Depends-On: #3542

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Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
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https://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/779a94a88ea145dd967a36dc9363e98f

✔️ openstack-k8s-operators-content-provider SUCCESS in 2h 10m 37s
✔️ podified-multinode-edpm-deployment-crc SUCCESS in 1h 29m 24s
❌ cifmw-crc-podified-edpm-baremetal RETRY_LIMIT in 13m 10s
✔️ cifmw-crc-podified-edpm-baremetal-minor-update SUCCESS in 1h 52m 04s
✔️ cifmw-pod-zuul-files SUCCESS in 4m 30s
✔️ noop SUCCESS in 0s
✔️ cifmw-pod-ansible-test SUCCESS in 8m 44s
✔️ cifmw-pod-pre-commit SUCCESS in 8m 08s
✔️ cifmw-architecture-validate-hci SUCCESS in 4m 09s
✔️ build-push-container-cifmw-client SUCCESS in 19m 54s
✔️ cifmw-molecule-kustomize_deploy SUCCESS in 4m 33s
✔️ cifmw-molecule-os_must_gather SUCCESS in 27m 32s
✔️ cifmw-molecule-run_hook SUCCESS in 3m 31s
❌ cifmw-molecule-set_openstack_containers FAILURE in 27m 20s
✔️ cifmw-molecule-update SUCCESS in 4m 52s

[amartyasinha]

recheck

[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/940fdaed373546a18cf95179a7b9e081

✔️ openstack-k8s-operators-content-provider SUCCESS in 1h 50m 43s
✔️ podified-multinode-edpm-deployment-crc SUCCESS in 1h 29m 13s
✔️ cifmw-crc-podified-edpm-baremetal SUCCESS in 1h 36m 46s
❌ cifmw-crc-podified-edpm-baremetal-minor-update RETRY_LIMIT in 19m 19s
✔️ cifmw-pod-zuul-files SUCCESS in 23m 13s
✔️ noop SUCCESS in 0s
✔️ cifmw-pod-ansible-test SUCCESS in 8m 48s
✔️ cifmw-pod-pre-commit SUCCESS in 7m 54s
✔️ cifmw-architecture-validate-hci SUCCESS in 4m 02s
✔️ build-push-container-cifmw-client SUCCESS in 16m 40s
✔️ cifmw-molecule-kustomize_deploy SUCCESS in 4m 18s
✔️ cifmw-molecule-os_must_gather SUCCESS in 26m 21s
✔️ cifmw-molecule-run_hook SUCCESS in 3m 36s
❌ cifmw-molecule-set_openstack_containers FAILURE in 23m 12s
✔️ cifmw-molecule-update SUCCESS in 5m 02s

[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/cd367261e4fc44aba3a527a1c07888f2

✔️ openstack-k8s-operators-content-provider SUCCESS in 2h 19m 52s
✔️ podified-multinode-edpm-deployment-crc SUCCESS in 1h 26m 03s
✔️ cifmw-crc-podified-edpm-baremetal SUCCESS in 1h 34m 43s
✔️ cifmw-crc-podified-edpm-baremetal-minor-update SUCCESS in 2h 05m 26s
✔️ cifmw-pod-zuul-files SUCCESS in 4m 35s
✔️ noop SUCCESS in 0s
✔️ cifmw-pod-ansible-test SUCCESS in 8m 10s
✔️ cifmw-pod-pre-commit SUCCESS in 8m 01s
✔️ cifmw-architecture-validate-hci SUCCESS in 5m 10s
✔️ build-push-container-cifmw-client SUCCESS in 19m 58s
✔️ cifmw-molecule-kustomize_deploy SUCCESS in 4m 28s
✔️ cifmw-molecule-os_must_gather SUCCESS in 25m 07s
✔️ cifmw-molecule-run_hook SUCCESS in 3m 33s
❌ cifmw-molecule-set_openstack_containers FAILURE in 26m 32s
✔️ cifmw-molecule-update SUCCESS in 4m 53s

[amartyasinha]

recheck