rename EventRecord -> EventLogEntry
Summary:
depends on D8418
rename EventRecord to EventLogEntry
register_serdes_tuple_fallbacks seems to handle everything - except the cases when dagit or daemon is running older versions, which we will have to ask users to redeploy to pick up the serdes backcompt.
Test Plan:
bk
dagit loads
historical runs load
pipeline failure sensors works
Reviewers: prha, alangenfeld
Reviewed By: prha
Differential Revision: https://dagster.phacility.com/D8422