Bump tornado from 6.3.3 to 6.4.1 #844

Job	Run time
linters (3.9, ubuntu-latest)	1m 37s
Testing on Python 3.8 (ubuntu-latest)	1m 44s
Testing on Python 3.8 (macos-13)	3m 15s
Testing on Python 3.8 (windows-2019)	3m 0s
Testing on Python 3.9 (ubuntu-latest)	1m 45s
Testing on Python 3.9 (macos-13)	2m 41s
Testing on Python 3.9 (windows-2019)	3m 9s
Testing on Python 3.10 (ubuntu-latest)	1m 50s
Testing on Python 3.10 (macos-13)	2m 5s
Testing on Python 3.10 (windows-2019)	3m 24s
Testing on Python 3.11 (ubuntu-latest)	1m 41s
Testing on Python 3.11 (macos-13)	3m 30s
Testing on Python 3.11 (windows-2019)	2m 34s
	32m 15s

Provide feedback