Tests

[mypyc] Implement bytes.endswith #20090

Job	Run time
Test mypyc suite with 32-bit Python	9m 42s
Test suite with py314-ubuntu, mypyc-compiled	14m 51s
Test suite with py310-ubuntu, mypyc-compiled	15m 39s
Test suite with py313-ubuntu, mypyc-compiled	14m 23s
mypyc runtime tests with py313-macos	5m 44s
Test suite with py311-ubuntu	9m 0s
Test suite with py312-ubuntu	10m 2s
Parallel tests with py314-ubuntu, interpreted	25m 7s
Test suite with py314-windows-64	27m 25s
Type check our own code (py310-ubuntu)	1m 33s
Type check our own code (py310-windows-64)	2m 19s
Formatting and code style with Black + ruff	1m 51s
Parallel tests with py314-ubuntu, mypyc-compiled	27m 34s
mypyc runtime tests with py310-ubuntu	5m 31s
Test suite with py314t-ubuntu, mypyc-compiled	17m 55s
	3h 8m 36s

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