[issue40003] test.regrtest: add an option to run test.bisect_cmd on failed tests, use it on Refleaks buildbots

[Dong-hee Na]

Change by Dong-hee Na <donghee.na92 at gmail.com>:


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nosy: +corona10

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40003>
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