[3.12] gh-106714: Fix test_capi to not write a coredump (GH-107007) (#107009)

gh-106714: Fix test_capi to not write a coredump (GH-107007)

test_capi: Fix test_no_FatalError_infinite_loop() to no longer write
a coredump, by using test.support.SuppressCrashReport.
(cherry picked from commit 4a1026d7647c084b0dc80dd49163d16ba12a2e55)

Co-authored-by: Victor Stinner <vstinner@python.org>