Tagged release v3.19.0

d0f85f0 fix(BSE,BRD,ALE): add correct exception for privatbank issue: https://gitlab.prozorro.sale/prozorro-sale/billing/-/issues/62
02bb275 feat(BSE, BSD): not use billing if organizer NBU for basicSell issue: https://gitlab.prozorro.sale/prozorro-sale/billing/-/issues/64
ef83688 feat: add operatorFee field to response issue: https://gitlab.prozorro.sale/prozorro-sale/billing/-/issues/63
446b06c Fix docs for changing output of common endpoint for integration.
f6aaf69 Fix bankruptcy protocols
a3d1145 Add exception for pryvatbank
04d942d Add exception for pryvatbank
70c58c3 Revert minimumLivingCost for bankruptcy protocol testing.