Download virtctl tool

[dahorak]

This PR is adding new fixture to get virtctl tool. It checks if this tool is available and if not, it firstly try to get it from the CNV if installed on the cluster and as a fall-back it downloads it from upstream github repository.

Also separating getting asset from github to separated function and use it in the new get_virtctl_tool function and also in get_opm_tool.

fixes: #10366

[openshift-ci]

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[dahorak]

@yitzhak12 I've updated/enhanced this PR in the way, that it firstly try to get the virtctl tool from the CNV if installed on the cluster and if that fails, it will download it from the upstream github repository.

[dahorak]

Verified locally with dummy tests:

08:54:29 - MainThread - ocs_ci.utility.utils - INFO  - Executing command: virtctl version -c
08:54:29 - MainThread - ocs_ci.helpers.virtctl - INFO  - virtctl tool is not available, installing it
08:54:29 - MainThread - ocs_ci.deployment.cnv - INFO  - Performing virtctl binary compatibility check...
08:54:29 - MainThread - ocs_ci.deployment.cnv - INFO  - Getting the virtctl download URL for Linux x86_64
08:54:29 - MainThread - ocs_ci.deployment.cnv - INFO  - Retrieving the specification links for the virtctl client
08:54:29 - MainThread - ocs_ci.utility.utils - INFO  - Executing command: oc --kubeconfig /home/dahorak/RedHat/OCS/clusters/dahorak-test/auth/kubeconfig -n openshift-cnv get ConsoleCLIDownload virtctl-clidownloads-kubevirt-hyperconverged -n openshift-cnv -o yaml
08:54:30 - MainThread - ocs_ci.utility.utils - WARNING  - Command stderr: Error from server (NotFound): consoleclidownloads.console.openshift.io "virtctl-clidownloads-kubevirt-hyperconverged" not found

08:54:30 - MainThread - ocs_ci.ocs.ocp - WARNING  - Failed to get resource: virtctl-clidownloads-kubevirt-hyperconverged of kind: ConsoleCLIDownload, selector: None, Error: Error during execution of command: oc --kubeconfig /home/dahorak/RedHat/OCS/clusters/dahorak-test/auth/kubeconfig -n openshift-cnv get ConsoleCLIDownload virtctl-clidownloads-kubevirt-hyperconverged -n openshift-cnv -o yaml.
Error is Error from server (NotFound): consoleclidownloads.console.openshift.io "virtctl-clidownloads-kubevirt-hyperconverged" not found

08:54:30 - MainThread - ocs_ci.ocs.ocp - WARNING  - Number of attempts to get resource reached!
08:54:30 - MainThread - ocs_ci.helpers.github - INFO  - Downloading tool from 'https://github.com/kubevirt/kubevirt/releases/download/v1.3.1/virtctl-v1.3.1-linux-amd64' to '/home/dahorak/RedHat/OCS/ocs-ci/bin'
08:54:35 - MainThread - ocs_ci.utility.utils - INFO  - Executing command: chmod +x /home/dahorak/RedHat/OCS/ocs-ci/bin/virtctl
08:54:35 - MainThread - ocs_ci.utility.utils - INFO  - Executing command: virtctl version -c
08:54:35 - MainThread - ocs_ci.helpers.virtctl - INFO  - virtctl tool is available: Client Version: version.Info{GitVersion:"v1.3.1", GitCommit:"ed1e7ae8548d319fa7aacf315ad198f7241287c5", GitTreeState:"clean", BuildDate:"2024-08-22T08:52:25Z", GoVersion:"go1.22.2 X:nocoverageredesign", Compiler:"gc", Platform:"linux/amd64"}