Bump test_heap_growth timeout

This will reduce (slightly) the flappiness of our tests

Signed-off-by: Paul Guyot <pguyot@kallisys.net>

Author: pguyot

tests/erlang_tests/test_heap_growth.erl

@@ -47,7 +47,7 @@ test_grow_beyond_min_heap_size() ->
     ok =
         receive
             {'DOWN', Ref1, process, Pid1, normal} -> ok
-        after 500 -> timeout
+        after 1000 -> timeout
         end,
     ok.