SHANGHAI (Reuters) – Shanghai’s COVID lockdown roiled auto production on Tuesday as a major supplier joined Tesla in shutting a plant to comply with the measures to control the spread of the virus. General Motors’ joint venture in Shanghai maintained production by asking workers to sleep on factory floors and getting passes for trucks to continue deliveries, two people familiar with the matter said. A key auto supplier, Aptiv PLC, told workers at one of its Shanghai facilities which supplies Tesla and GM’s Shanghai joint venture to head home on Tuesday because of the need to enforce COVID-19 c…