This version contains necessary fixes for validating the "audience"
component of the JWT, as seen in ARCHBOM-1281. (I believe we'll need to
pass both the App ID and the Service ID in an additional AUDIENCE "other
settings" key for this third-party-auth backend.)
Vendored from version 3.4.0 (9d93069564a60495e0ebd697b33e16fcff14195b)
social-core:
https://github.com/python-social-auth/social-core/blob/3.4.0/social_core/backends/apple.py
v3.4.0 is unreleased at this time (2020-07-28) and contains several
necessary bugfixes over 3.3.3 for AppleID, but also causes the
TestShibIntegrationTest.test_full_pipeline_succeeds_for_unlinking_testshib_account
test in common/djangoapps/third_party_auth/tests/specs/test_testshib.py
to break (somehow related to social-core's change 561642bf which makes
a bugfix to partial pipeline cleaning). ARCHBOM-1389 filed to address
this at our convenience.
Note: 3.4.0 was not released to PyPI due to a broken test, so we might
see a 3.4.1 when it's actually released:
https://github.com/python-social-auth/social-core/issues/485
