[Snyk] Security upgrade tornado from 6.2 to 6.5#641

bashtage wants to merge 1 commit intomainbashtage/linearmodels:mainfrom

snyk-fix-6ad61cab309ac48a3ca70e66e29fd9afbashtage/linearmodels:snyk-fix-6ad61cab309ac48a3ca70e66e29fd9afCopy head branch name to clipboard