Add two tasks to create and destroy VM stacks in Azure

[FlorentClarret]

What does this PR do?

• Add two new tasks az.create-vm and az.destroy-vm to create VMs with the Agent in Azure. They are currently very basic and do not have all the parameters the AWS counterpart has but we'll add them in future PRs to keep this PR readable.
• This is limited to Linux for now
• Update the setup task to include the new parameter for Azure. We have also a key parameter for AWS thsat could be merged in a follow-up PR
• Deprecate the create-vm and destroy-vm tasks in favour of aws.create-vm and aws.destroy-vm. The old commands still work. they print a deprecation message and redirect to the new version
• Add an integration test for Azure with all the requirements to run it from the CI
• We currently use the deploy function as is, where we have a lot of AWS specific stuff. I did not want to refactor too much and I'll open a PR in the future to move them to the AWS-specific command

To make it work, we need to have an ssh key to use for this instance. For instance:

  azure:
    publicKeyPath: /Users/florent.clarret/.ssh/id_rsa_azure.pub

I'll add documentation about this once this will be a bit more stable and usable for everyone. This parameter is not required unless you're trying to deploy a VM on Azure

Which scenarios this will impact?

Everyone who uses the create-vm or destroy-vm and people who want to deploy a VM in Azure.

Motivation

The Azure sandbox is out!

Additional Notes

Co-authored with @KevinFairise2

https://datadoghq.atlassian.net/browse/ADXT-487

[pducolin]

Could you add it to integration tests too?

[datadog-datadog-prod-us1]

Library Vulnerabilities

  

[FlorentClarret]

I commented the section to run integrations tests on Azure. We need https://github.com/DataDog/cloud-inventory/pull/20422 for this, it's currently broken and cloudops is having a look. I'll open a follow-up PR to address that.

Merging this one so we can move on with the refactoring of the tasks

[FlorentClarret]

/merge

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[dd-devflow]

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