bump authlogic to 5.0.4
bump authlogic to 5.0.4

https://github.com/binarylogic/authlogic/blob/master/CHANGELOG.md

Change-Id: I5f80bb9ce626ab7cd9ca047d8130d6cdac74294a
Reviewed-on: https://gerrit.instructure.com/212336
Tested-by: Jenkins
Reviewed-by: James Butters <4c5a489c9bb72d41f20b3b22aaf4c9b864e32f20@instructure.com>
QA-Review: Simon Williams <088e16a1019277b15d58faf0541e11910eb756f6@instructure.com>
Product-Review: Simon Williams <088e16a1019277b15d58faf0541e11910eb756f6@instructure.com>

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