Datastore role should use normpath instead of realpath

[sk4zuzu]

Description
From ansible docs: https://docs.ansible.com/ansible/latest/collections/ansible/builtin/realpath_filter.html#synopsis

Filters always run on the controller so this path is resolved using the controller’s filesystem.

Datastore role incorrectly uses the realpath filter which may yield unpredictable results, it should be replaced with normpath filter or be removed altogether.

To Reproduce
N/A

Expected behavior
N/A

Details

• Ansible version: N/A
• Linux OS distro in your cluster: N/A
• Version: master

Additional context
N/A

Progress Status

• Code committed
• Testing - QA
• Documentation (Release notes - resolved issues, compatibility, known issues)