fix(semester-scope): meeting date scoped with DateTime caused day overlap

So a scope with DateTime 2019-12-01T00:00:00.0000Z turned out to match
hour meeting date 2019-11-30. Converting that DateTime to date solved the problem.
3 jobs for fix/semester-filter-billing-expenses in 15 minutes and 35 seconds (queued for 27 seconds)
Status Job ID Name Coverage
  Test
passed #545840
lint

00:05:51

passed #545842
system

00:15:35

passed #545841
test

00:06:18