Tests

Use PEP 604 union syntax in test output (#20402) #19735

Job	Run time
Test mypyc suite with 32-bit Python	9m 25s
Test suite with py314-ubuntu, mypyc-compiled	13m 35s
Test suite with py310-ubuntu, mypyc-compiled	13m 57s
Test suite with py312-ubuntu	10m 3s
Test suite with py314-windows-64	27m 19s
Test suite with py311-ubuntu	8m 53s
Test suite with py313-ubuntu, mypyc-compiled	14m 43s
Type check our own code (py310-ubuntu)	1m 46s
Parallel tests with py314-ubuntu, interpreted	22m 54s
Type check our own code (py310-windows-64)	3m 9s
mypyc runtime tests with py313-macos	5m 28s
mypyc runtime tests with py310-ubuntu	5m 10s
Parallel tests with py314-ubuntu, mypyc-compiled	28m 38s
Test suite with py314t-ubuntu, mypyc-compiled	16m 28s
Formatting and code style with Black + ruff	1m 56s
	3h 3m 24s

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