Fix intermittent hot-reload test failures caused by metadata initialization race condition#3302

aaronburtle wants to merge 6 commits intomainAzure/data-api-builder:mainfrom

dev/aaronburtle/hot-reload-test-internalservererrorAzure/data-api-builder:dev/aaronburtle/hot-reload-test-internalservererrorCopy head branch name to clipboard