Skip member authorization refresh on irrelevant updates

What does this MR do and why?

Skip member authorization refresh on irrelevant updates

Every member update refreshes project_authorizations, even when the changes aren't related to their access level. Only refresh when the relevant columns are updated. The change is behind the refresh_member_authorizations_only_on_access_changes FF

References

• We can see from the logs that access level changes were only 25% of the root cause for member refreshes.

MR acceptance checklist

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Related to #627276