Add `title` field to custom abilities yaml file

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What does this MR do and why?

This MR adds title field to all yaml files at ee/config/custom_abilities as requested by #482750 (closed).

There were two yaml fiels which had no title specified in the issue (I just mimicked the style in the issue 😁).

Permission Title	API Attribute
Manage integrations	admin_integrations
View CRM contact	read_crm_contact

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Related to #482750 (closed)