Org: Round invoice to 0.05 before grand total

[cyrillkuettel]

Please fill in the commit message below and work through the checklist. You can delete parts that are not needed, e.g. the optional description, the link to a ticket or irrelevant options of the checklist.

Commit message

:

TYPE: <Feature|Performance|Bugfix>
LINK:
HINT:

Checklist

• I have performed a self-review of my code
• I considered adding a reviewer
• I have added an upgrade hint such as data migration commands to be run
• I have updated the PO files
• I have added new modules to the docs
• I made changes/features for both org and town6
• I have updated the election_day API docs
• I have tested my code thoroughly by hand
  • I have tested styling changes/features on different browsers
  • I have tested javascript changes/features on different browsers
  • I have tested database upgrades
  • I have tested sending mails
  • I have tested building the documentation
• I have added tests for my changes/features
  • I am using freezegun for tests depending on date and times
  • I considered using browser tests für javascript changes/features
  • I have added/updated jest tests for d3rendering (election_day, swissvotes)

[linear]

OGC-2957

[codecov]

Codecov Report

❌ Patch coverage is 83.33333% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.53%. Comparing base (a7dd17f) to head (de45eb0).
⚠️ Report is 4 commits behind head on master.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/onegov/org/models/ticket.py	33.33%	4 Missing ⚠️
src/onegov/org/utils.py	88.23%	2 Missing ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
src/onegov/org/constants.py	100.00% <ø> (ø)
src/onegov/org/forms/settings.py	73.05% <100.00%> (+0.03%)	⬆️
src/onegov/org/models/organisation.py	95.83% <100.00%> (+0.01%)	⬆️
src/onegov/org/views/reservation.py	68.79% <100.00%> (ø)
src/onegov/org/views/settings.py	87.00% <100.00%> (ø)
src/onegov/pay/__init__.py	100.00% <100.00%> (ø)
src/onegov/pay/utils.py	94.73% <100.00%> (+0.09%)	⬆️
src/onegov/town6/views/settings.py	98.19% <100.00%> (ø)
src/onegov/org/utils.py	86.78% <88.23%> (-0.01%)	⬇️
src/onegov/org/models/ticket.py	88.78% <33.33%> (-0.31%)	⬇️

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