Handle faking migrations and upgrade for social-auth-app-django

[dianakhuang]

We had to pin social-auth-app-django due to the upgrade involving several migrations that would need to be faked for edx.org.

We will need to coordinate with SRE to fake these new migrations, and then we can unpin them. There might be a few other minor migrations fixes, so we can probably wait a few months to see if there's any other changes, then attempt to fake new migrations.

[pdpinch]

Is there any chance this could be unpinned before the Sumac release?

[dianakhuang]

@pdpinch we were talking about how we might need to juggle our priorities to do it sooner. Would it be okay to do it in a post-release patch? Or is this a specific concern about having this change and its migrations in along with the main release?

[pdpinch]

Post-sumac is fine with us. I was just wondering if this was something we would need to address in testing and release notes.