flavor-manager-input.py uses strings instead of real types for default values

Created by: gndrmnn

Currently, the flavor-manager-input.py produces yaml files which contain strings instead of booleans for certain default values. Namely public and disabled: https://github.com/SovereignCloudStack/standards/blob/92b3e8cc85cfff4c424bee722961609103bf4ece/Tests/iaas/flavor-naming/flavor-manager-input.py#L41-L49

We are currently working on unifying the type parsing for the osism-flavor-manager and have encountered the problem, that the yaml file in this repo (SCS-Spec.MandatoryFlavors.verbose.yaml), which will be automatically downloaded by the osism-flavor-manager at the users discretion, contains strings instead of booleans because of the python script mentioned above: https://github.com/SovereignCloudStack/standards/blob/92b3e8cc85cfff4c424bee722961609103bf4ece/Tests/iaas/SCS-Spec.MandatoryFlavors.verbose.yaml#L1-L13

We propose changing the flavor-manager-input.py in this repo and regenerating the yaml file with correctly typed values.

For reference, this is how the osism flavor.yaml file looks like: https://raw.githubusercontent.com/osism/openstack-flavor-manager/main/flavors.yaml