[FIX] google_calendar: Slow calendar sync

Create a lot of event (i.e. 300 via recursive events) with attedees. Sync.
Cancel all the events. Sync again. This and all subsequent
synchronization will take a lot of time to complete. The first time is
normal because odoo will cross-check every deleted event for the "syncing" user
with google to ensure that there is match between OE and GC.

This matching will sistematically fail because the json module cannot
serialize a datetime object, so it will be retriggered again and again
stalling the synchronization for minutes. Formatting the datetime before calling the
dump fixes. Moreover the api usage was wrong as 'originalStartTime' is
not a date but a complex object holding the date.

Note: this could have been avoided via logging but error detection was
suppressed.

opw-2052450

closes odoo/odoo#37335

X-original-commit: 951808b2434717d38ab9d562404eb74d8bd40634
Signed-off-by: agr-odoo <agr-odoo@users.noreply.github.com>

0 files changed, 0 insertions, 0 deletions