fix: Pass through BigQuery Config in multithreaded worker (closes #2298)#2299

justin-plancraft wants to merge 2 commits intofirebase:nextfirebase/extensions:nextfrom

justin-plancraft:@justin-plancraft/fix-multi-project-multi-threaded-importjustin-plancraft/extensions:@justin-plancraft/fix-multi-project-multi-threaded-importCopy head branch name to clipboard