Change table definition for vcpus field for the cloud_resource_specs table

[eiffel777]

The vcpus field for the cloud_resource_specs table had the nullable property set to be true. This is incorrect and in MySQL 5.7 or higher causes an error since this field is part of the primary key.

xdmod.jobs-cloud-common.CloudTableManagement (ETL\Maintenance\ManageTables): Error managing ETL table `modw_cloud`.`cloud_resource_specs`: SQLSTATE[42000]: Syntax error or access violation: 1171 All parts of a PRIMARY KEY must be NOT NULL; if you need NULL in a key, use UNIQUE instead

Setting the field to be nullable: false fixes the problem

Tests performed

Tested manually

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project as found in the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[jpwhite4]

Is it possible that there could be null values in the table from an earlier XDMoD version?

[eiffel777]

@jpwhite4 This table was added in the cloud utilization PR(#1242) and doesn't exist in previous version of XDMoD that should not be something that needs to be worried about, unless I am misunderstanding your question.