Add logging for recurring calendar events api
Add logging for recurring calendar events api

refs LS-2666
flag=none

test plan:
- n/a

Change-Id: I809e128046762d86faf64e803b231b83eaab75b6
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/282277
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>
Reviewed-by: Ben Rinaca <55a6093a45d41fed7a0fcf1e8dbdc41f5092bc04@instructure.com>
QA-Review: Eric Saupe <e7287cf05ae62bc45889f17a9d34b8fae8d5afd1@instructure.com>
Product-Review: Eric Saupe <e7287cf05ae62bc45889f17a9d34b8fae8d5afd1@instructure.com>

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