Use 'now' instead of the end-of-day in UTC

[gjvoosten]

For the cut-off datetime in deciding if something is a future (planned) engagement, use the current datetime, instead of the end-of-day in UTC, which in some cases would lead to engagements being changed to 'draft' status on the wrong day.

Release notes

Fixes #3220

User changes

• E-mail messages informing the author that their planned engagement report has received 'draft' status are now sent shortly after the start of the meeting, instead of possibly on the wrong day.

Super User changes

• none

Admin changes

• none

System admin changes

• none
• anet.yml needs change
• db needs migration
• documentation has changed
• graphql schema has changed

Checklist

• Described the user behavior in PR body
• Referenced/updated all related issues
• commits follow a repo#issue: Title title format and these 7 rules
• commits have a clean history, otherwise PR may be squash-merged
• Added and/or updated unit tests
• Added and/or updated e2e tests
• Added and/or updated data migrations
• Updated documentation
• Resolved all build errors and warnings
• Opened debt issues for anything not resolved here