Bump virtualenv from 21.1.0 to 21.2.0 (#12224) #2421

Job	Run time
Pre-Setup global build settings	4s
Generate llhttp sources	17s
Linter	1m 5s
Autobahn testsuite (3.14, ubuntu)	12m 5s
Test (3.10, windows, false)	5m 24s
Test (3.11, ubuntu, false)	3m 58s
Test (3.11, macos, false)	5m 30s
Test (3.10, ubuntu, false)	4m 11s
Test (3.11, windows, false)	5m 25s
Test (3.12, windows, false)	5m 36s
Test (3.12, ubuntu, false)	4m 18s
Test (3.13, ubuntu, false)	4m 26s
Test (3.14, ubuntu, false)	5m 1s
Test (3.14, Y, ubuntu, false)	5m 37s
Test (3.12, Y, ubuntu, false)	5m 45s
Test (3.13, macos, false)	5m 57s
Test (3.13, windows, false)	5m 49s
Test (ubuntu, 3.14t, false)	3m 43s
Test (3.12, macos, false)	7m 1s
Test (3.14, macos, false)	10m 13s
Test (3.10, Y, ubuntu, false)	5m 38s
Test (3.11, Y, ubuntu, false)	5m 27s
Test (pypy-3.11, Y, ubuntu, false)	9m 35s
Test (3.14, windows, false)	6m 37s
Test (3.13, Y, ubuntu, false)	5m 37s
Test (3.10, macos, false)	6m 55s
Benchmark	0s
check	7s
Pre-Deploy	0s
Build wheels on ${{ matrix.os }} ${{ matrix.qemu }} ${{ matrix.musl }}	0s
Tarball	0s
Deploy	0s
	2h 21m 21s

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