Tests

Bump virtualenv from 20.34.0 to 20.36.1 #20111

Job	Run time
Test mypyc suite with 32-bit Python	9m 35s
Test suite with py312-ubuntu	9m 53s
Test suite with py313-ubuntu, mypyc-compiled	15m 8s
Test suite with py311-ubuntu	9m 3s
Test suite with py314-windows-64	26m 44s
Test suite with py314t-ubuntu, mypyc-compiled	18m 21s
Test suite with py310-ubuntu, mypyc-compiled	14m 55s
Parallel tests with py314-ubuntu, interpreted	23m 50s
Type check our own code (py310-ubuntu)	1m 44s
mypyc runtime tests with py313-macos	5m 46s
mypyc runtime tests with py310-ubuntu	5m 54s
Test suite with py314-ubuntu, mypyc-compiled	14m 33s
Type check our own code (py310-windows-64)	2m 11s
Formatting and code style with Black + ruff	1m 59s
Parallel tests with py314-ubuntu, mypyc-compiled	28m 41s
	3h 8m 17s

Provide feedback