Always shows a deprecation warning

[mickaelperrin]

Hi,

If the env var SCALEWAY_ORGANIZATION is not set, we have the following deprecated message:

Deprecation warning: Use SCALEWAY_ORGANIZATION environment variable and organization_id argument instead of api_access_key argument and SCALEWAY_API_ACCESS_KEY environment variable

see: https://github.com/scaleway/packer-plugin-scaleway/blame/0b46fa2c9931908d98549d24c2ec73c1c7a206a8/builder/scaleway/config.go#L178

If the env var SCALEWAY_ORGANIZATION is set, we have the following deprecated message:

organization_id is deprecated in favor of project_id

see: https://github.com/scaleway/packer-plugin-scaleway/blame/0b46fa2c9931908d98549d24c2ec73c1c7a206a8/builder/scaleway/config.go#L183