Improved handling of env reload request - handles older version of worker sdk#1955

kshyju merged 6 commits intomainAzure/azure-functions-dotnet-worker:mainfrom

shkr/check_worker_version_in_nativeplaceholderAzure/azure-functions-dotnet-worker:shkr/check_worker_version_in_nativeplaceholderCopy head branch name to clipboard