Randomise groupings when resetting interactions

[nikele2001]

Groupings are currently deterministic and they are based on the order in which members are in within the project. Randomising the groupings when resetting interactions will prevent the bot from assigning previous groupings (even though the reason for resetting the interactions is to start anew)

[codecov]

Codecov Report

Attention: 8 lines in your changes are missing coverage. Please review.

Comparison is base (044b0a4) 5.00% compared to head (aa103c5) 17.52%.
Report is 5 commits behind head on main.

Files	Patch %	Lines
src/models/Project.ts	0.00%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##            main      #61       +/-   ##
==========================================
+ Coverage   5.00%   17.52%   +12.51%     
==========================================
  Files         36       36               
  Lines       1817     1855       +38     
  Branches      38       78       +40     
==========================================
+ Hits          91      325      +234     
+ Misses      1692     1497      -195     
+ Partials      34       33        -1     

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