Consider nonce when checking for existing vote transactions in stacke…

[jferrant]

This PR addresses the issue that can occur if a signer account is used to generate stacks transactions external to the signer binary operation. This is not normally an issue unless the created transaction occurs in the same block. Signers should attempt to resubmit a vote if it is found to be unconfirmed (i.e. they have not voted yet) and the tx is still sitting in stackerdb transaction slot with an outdated nonce.

Closes #4615

[codecov]

Codecov Report

Attention: Patch coverage is 80.35714% with 11 lines in your changes are missing coverage. Please review.

Project coverage is 83.24%. Comparing base (132ced0) to head (53f2635).
Report is 5 commits behind head on next.

Additional details and impacted files

@@            Coverage Diff             @@
##             next    #4621      +/-   ##
==========================================
+ Coverage   77.78%   83.24%   +5.45%     
==========================================
  Files         470      470              
  Lines      332564   332714     +150     
  Branches      317      317              
==========================================
+ Hits       258690   276952   +18262     
+ Misses      73866    55754   -18112     
  Partials        8        8              

Files	Coverage Δ
stackslib/src/chainstate/nakamoto/signer_set.rs	82.16% <100.00%> (ø)
stacks-signer/src/signer.rs	72.64% <80.00%> (+0.47%)	⬆️

... and 214 files with indirect coverage changes

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[hstove]

LGTM!