Switch cert bundle for small ai thinker board #2037

Job	Run time
scheduler	45s
mpy-cross-mac	28s
tests / run (native_mpy)	46s
tests / run (mpy)	36s
tests / run (all)	1m 6s
tests / run (native)	45s
mpy-cross / build (static-mingw)	46s
mpy-cross / build (static-aarch64)	43s
mpy-cross / build (static)	19s
tests / zephyr	17m 1s
mpy-cross / build (static-raspbian)	43s
docs	0s
windows	-1s
windows-zephyr	-1s
ports (espressif) / board (ai_thinker_esp32-c3s-2m)	4m 1s
	27m 57s

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