fix: kill process silently

[jayzhang]

fix: https://msazure.visualstudio.com/Microsoft%20Teams%20Extensibility/_workitems/edit/30344887

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.05%. Comparing base (a2c09e8) to head (aafc25a).

Additional details and impacted files

@@           Coverage Diff           @@
##              dev   #12790   +/-   ##
=======================================
  Coverage   90.05%   90.05%           
=======================================
  Files         577      577           
  Lines       34308    34309    +1     
  Branches     6749     6844   +95     
=======================================
+ Hits        30896    30897    +1     
  Misses       1507     1507           
  Partials     1905     1905           

Files with missing lines	Coverage Δ
packages/vscode-extension/src/utils/processUtil.ts	100.00% <100.00%> (ø)