Changing BusinesAuditEntryData to Enterprise

[evgenyrahman]

This pull request changes the reference to the BusinessAuditEntryData interface in the audit log example query to the EnterpriseAuditEntryData interface, as this reflects the renaming of the interface on the GitHub GraphQL API

https://docs.github.com/en/graphql/reference/interfaces#enterpriseauditentrydata

The change includes an update to the businessUrl field to the enterpriseUrl field, as that field has been renamed on the interface as well.

Relevant changelog entry https://docs.github.com/en/graphql/overview/changelog#schema-changes-for-2019-07-17