[ansible/artifactory] Add possibility of generating bootstrap access token

[PolaricEntropy]

I'm using the Ansible jfrog.platform collection to install Artifactory.

I need a valid access token to fully automate the configuration of Artifactory after the installation (either directly through the API or through Terraform, for instance). Traditionally, I would need to sign into Artifactory with the admin credentials after installation and then create a token via the JFrog Platform UI. However there is functionality to generate a short-lived bootstrap token in Artifactory by creating a file in a specific path on the server, see more in https://jfrog.com/help/r/jfrog-installation-setup-documentation/create-an-automatic-admin-token