Do not reuse the id of any vm in pool.executions

[olethanh]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 61.44%. Comparing base (ff6c119) to head (27fc927).
Report is 1 commits behind head on main.

Files	Patch %	Lines
src/aleph/vm/pool.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #672      +/-   ##
==========================================
+ Coverage   61.43%   61.44%   +0.01%     
==========================================
  Files          68       68              
  Lines        5997     5994       -3     
  Branches      635      635              
==========================================
- Hits         3684     3683       -1     
+ Misses       2158     2156       -2     
  Partials      155      155              

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