Add missing missing stack map declaration for `array.new_data` (#12935)

`translate_array_new_data` created a GC reference (array ref) via a libcall but
did not call `builder.declare_value_needs_stac

Add missing missing stack map declaration for `array.new_data` (#12935)

`translate_array_new_data` created a GC reference (array ref) via a libcall but
did not call `builder.declare_value_needs_stack_map()` on the result. This meant
that the reference was not included in stack maps at subsequent safepoints, so
if a GC occurred, the reference became stale (leading to use-after-free bugs
inside the GC heap sandbox).

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