fix: Remove sweepers dependency on ovh_vrack_cloudproject

[amstuta]

Description

Test sweepers for resource ovh_cloud_project_network_private have been removed, so they must not be referenced as dependency in other resources tests.

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Improvement (improve existing resource(s) or datasource(s))
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation update