Only relocate memory if memory_file is passed

[fmoletta]

This PR aims to avoid relocating the cairo memory if its not going to be outputted by the vm. If using the cairo_run, this can be customized via the CairoRunConfig

[codecov]

Codecov Report

Merging #910 (e55ab79) into main (77fe09e) will decrease coverage by 0.01%.
The diff coverage is 89.47%.

@@            Coverage Diff             @@
##             main     #910      +/-   ##
==========================================
- Coverage   97.41%   97.41%   -0.01%     
==========================================
  Files          70       70              
  Lines       29641    29652      +11     
==========================================
+ Hits        28876    28886      +10     
- Misses        765      766       +1     

Impacted Files	Coverage Δ
cairo-vm-cli/src/main.rs	26.31% <0.00%> (-0.28%)	⬇️
src/vm/runners/cairo_runner.rs	97.72% <91.66%> (+<0.01%)	⬆️
src/cairo_run.rs	98.52% <100.00%> (+<0.01%)	⬆️

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