Disable lsan.test_asyncify_during_exit. NFC

[sbc100]

This test allocates the asyncify stack during the exit handlers and
it's never freed.

Interestingly enough this leak was not caught prior to #14280.
I did some investigation and found that prior to #14280 this
chunk was bring detected a reachable via the conservative stack
scan here:

emscripten/system/lib/compiler-rt/lib/lsan/lsan_common_emscripten.cpp

Lines 141 to 153 in 98a8cbf

	if (flags()->use_stacks) {
	LOG_THREADS("Stack at %p-%p.\n", stack_begin, stack_end);
	// We can't get the SP for other threads to narrow down the range, but we
	// we can for the current thread.
	if (tctx->tid == GetCurrentThread()) {
	uptr sp = (uptr) __builtin_frame_address(0);
	CHECK(stack_begin <= sp && sp < stack_end);
	stack_begin = sp;
	}
	ScanRangeForPointers(stack_begin, stack_end, frontier, "STACK", kReachable);
	}

If I comment out this stack scan then this leak will be
detected even before #14280

Also, add --profiling to asan and lsan builds to make
error reports more useful.

See #14360