fix failing tarp test

[janfb]

tarp test was failing due to the change in max samping batch size from #1624 . Increasing the simulation budget slightly fixed the problem.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
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✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1628   +/-   ##
=======================================
  Coverage        ?   86.43%           
=======================================
  Files           ?      135           
  Lines           ?    10927           
  Branches        ?        0           
=======================================
  Hits            ?     9445           
  Misses          ?     1482           
  Partials        ?        0           

Flag	Coverage Δ
unittests	86.43% <ø> (?)

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