Flush receipt with the correct state

[codchen]

Describe your changes and provide context

stateToCommit could be either processProposalState or deliverState, so we should flush to the correct one. This might not be causing issue yet though, since before receipt flush, we'd first write stateToCommit to the parent state, so that deliverState would fall through to parent which is already updated by stateToCommit

Testing performed to validate your change

existing test

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.89%. Comparing base (02f1c2f) to head (668cfa3).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #546      +/-   ##
==========================================
- Coverage   54.89%   54.89%   -0.01%     
==========================================
  Files         631      631              
  Lines       54954    54954              
==========================================
- Hits        30169    30166       -3     
- Misses      22628    22630       +2     
- Partials     2157     2158       +1     

Files with missing lines	Coverage Δ
baseapp/abci.go	52.79% <100.00%> (ø)

... and 1 file with indirect coverage changes