`test_heap_growth` test might fail

[bettio]

Test output:

test_heap_growth:
CRASH 
======
pid: <0.1.0>

Stacktrace:
[{test_heap_growth,test_grow_beyond_min_heap_size,0,[{file,"/home/runner/work/AtomVM/AtomVM/tests/erlang_tests/test_heap_growth.erl"},{line,48}]},{test_heap_growth,start,0,[{file,"/home/runner/work/AtomVM/AtomVM/tests/erlang_tests/test_heap_growth.erl"},{line,26}]}]

cp: #CP<module: 0, label: 2, offset: 8>

x[0]: error
x[1]: {badmatch,timeout}
x[2]: {2,2,71,1,[{0,18},{0,177}],error}

Stack 
-----

#Ref<0.0.0.1>
<0.2.0>
#CP<module: 0, label: 2, offset: 8>
#CP<module: 0, label: 163, offset: 0>


Mailbox
-------
{DOWN,#Ref<0.0.0.1>,process,<0.2.0>,normal}


Monitors
--------


**End Of Crash Report**
Expected 0 but result is not an integer
test_heap_growth:FAILED

It should be investigated if it is just a regular timeout due to valgrind slowness, or something else.