Odoo Release Updates

[FIX] mail, hr_holidays, portal: send `partner_id` of `main_user_id`

[IMP] hr_holidays: remove the tooltip in the time selection widget

[REF] web, *: stop using `exprToBoolean` for date field options

[FIX] hr_holidays: fix work entry types in tests

[REF] hr, *: run rendering context migration script

[REF] web: remove groupBy utility and use native Object.groupBy

[REF] *: Run script to replace t-model by t-custom-model

[REF] *: Run script to replace t-ref by t-custom-ref

[IMP] hr_holidays : adjust group request timeoff type

[REF] *: Run script to replace t-esc by t-out

[FIX] hr_holidays : Consider leaves for allocation with no date_to

[REF] *: remove url from js file tours

[IMP] l10n_be_hr_payroll: sick day helper

[FIX] hr_holidays: first working interval mixup of employee and resource

[IMP] mail: update tracking API

[FIX] hr_holidays: fix group time off duration computation

[FIX] hr_holidays: fix calendar view tour

[FIX] hr_holidays: fix access error for my department filter

[FIX] hr_holidays: fix employee report field

[FIX] hr_holidays: Fix tour overtime ruleset

[FIX] hr_holidays: Fix Report By Employee on Test Click All

[IMP] hr_holidays: improve time off search view

[FIX] hr_holidays: fix incorrect time off view from time off graph

[FIX] hr_holidays: fix invalid time display for hourly time off

[FIX] hr_holidays: fix traceback when creating group allocation

[FIX] web: formatFloatTime + use extractOptions in list/graph

[IMP] {google_,microsoft_}calendar: improve the UX

[IMP] mail: cleanup track naming and usage

[IMP] core: random serial for testing

[FIX] hr_holidays: count valid allocations starting previous year