Add exiting error code for compute-sanitizer

[sjsprecious]

This PR adds a non-zero exiting code for compute-santizer when it finishes a run and detects a memory leak. Therefore, a test with memory leak will fail as expected.

fix #552

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.25%. Comparing base (555be4e) to head (595be3b).
Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #553   +/-   ##
=======================================
  Coverage   92.25%   92.25%           
=======================================
  Files          45       45           
  Lines        3407     3407           
=======================================
  Hits         3143     3143           
  Misses        264      264           

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