Fix sql data cannot be null in query

[Lainow]

Checklist before requesting a review

Please delete options that are not relevant.

• I have performed a self-review of my code.
• I have added tests (when available) that prove my fix is effective or that my feature works.
• I have updated the CHANGELOG with a short functional description of the fix or new feature.
• This change requires a documentation update.

Description

• It fixes !38855
• Here is a brief description of what this PR does

Correcting the SQL error: The column ‘...’ cannot be null in the query.

Screenshots (if appropriate):

[stonebuzz]

If CPU is the only case encountered (on NetworkEquipment), it is recommended to implement the public function reformat(&$values = []) method in the PluginDatainjectionNetworkEquipmentInjection class, similar to the implementation in PluginDatainjectionInfocomInjection:

public function reformat(&$values = [])
{
    foreach (
        ['order_date', 'use_date', 'buy_date', 'warranty_date', 'delivery_date', 'inventory_date'] 
        as $date
    ) {
        if (
            isset($values['Infocom'][$date]) &&
            ($values['Infocom'][$date] == PluginDatainjectionCommonInjectionLib::EMPTY_VALUE)
        ) {
            $values['Infocom'][$date] = "NULL";
        }
    }
}