Only run cluster tests on nightly tests, not nocluster tests

[feloy]

What type of PR is this:

/kind bug
/area testing

What does this PR do / why we need it:

Which issue(s) this PR fixes:

Fixes #6812

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[feloy]

/override kubernetes-infra-stage-test

/override ODO-PODMAN-TEST

2023-05-22T11:47:10.0054986Z   [odo]  ✗  unable to access podman. Do you have podman client installed and configured correctly? cause: timeout (10s) while waiting for Podman version: context deadline exceeded: signal: killed. Please check the output of the following command: [podman version --format json]

/override windows-integration-test/Windows-test

  [oc] Unable to connect to the server: dial tcp 158.177.107.50:30329: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.

[openshift-ci]

@feloy: Overrode contexts on behalf of feloy: ODO-PODMAN-TEST, kubernetes-infra-stage-test, windows-integration-test/Windows-test

In response to this:

/override kubernetes-infra-stage-test

/override ODO-PODMAN-TEST

2023-05-22T11:47:10.0054986Z   [odo]  ✗  unable to access podman. Do you have podman client installed and configured correctly? cause: timeout (10s) while waiting for Podman version: context deadline exceeded: signal: killed. Please check the output of the following command: [podman version --format json]

/override windows-integration-test/Windows-test

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