[3.11] gh-103726: Set up gcc-10 for ASAN (gh-103728) (#104794)

Set up gcc-10 for ASAN CI as the existing config's default 9.x does not
play well with `vfork()`.

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* Issue: gh-103726
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(cherry picked from commit 83305808000e03cbad31ac3e9ef65454fb409282)

Co-authored-by: Dong-hee Na <donghee.na@python.org>

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