Preview checkpoint call before transacting in checkpoint bots

[slundqui]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 81.29%. Comparing base (aa48676) to head (6ca32a4).
Report is 108 commits behind head on main.

Files with missing lines	Patch %	Lines
src/agent0/ethpy/base/transactions.py	50.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1565      +/-   ##
==========================================
+ Coverage   81.26%   81.29%   +0.03%     
==========================================
  Files          98       98              
  Lines        7093     7095       +2     
==========================================
+ Hits         5764     5768       +4     
+ Misses       1329     1327       -2     

Flag	Coverage Δ
unittests	81.29% <50.00%> (+0.03%)	⬆️

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