[FIX] connector-runner: use string type for datetime
[FIX] connector-runner: use string type for datetime

Odoo indeed adapts the psycopg2 type mappings to use strings for datetime.

zhaohuaw/connector,brain-tec/connector,brain-tec/connector,acsone/connector,MindAndGo/connector,dvitme/connector,Endika/connector,gurneyalex/connector,mohamedhagag/connector,fevxie/connector,sylvain-garancher/connector,MindAndGo/connector,dvitme/connector,hugosantosred/connector,maljac/connector,open-synergy/connector,mohamedhagag/connector,fevxie/connector,open-synergy/connector,esousy/connector,acsone/connector,sylvain-garancher/connector,BT-jmichaud/connector,js-landoo/connector,maljac/connector,BT-fgarbely/connector,zhaohuaw/connector,js-landoo/connector,esousy/connector,acsone/connector,gurneyalex/connector,BT-fgarbely/connector,Endika/connector,hugosantosred/connector,BT-ojossen/connector,BT-jmichaud/connector,brain-tec/connector,Antiun/connector,BT-ojossen/connector,Antiun/connector