feat(BUX-168): beefTx for not mined inputs

[wregulski]

Pull Request Checklist

• 📖 I created my PR using provided : CODE_STANDARDS
• 📖 I have read the short Code of Conduct: CODE_OF_CONDUCT
• 🏠 I tested my changes locally.
• ✅ I have provided tests for my changes.
• 📝 I have used conventional commits.
• 📗 I have updated any related documentation.
• 💾 PR was issued based on the Github or Jira issue.

[pawellewandowski98]

Tested locally and everything works

[codecov]

Codecov Report

Merging #468 (9a7b689) into rc-beef-v2-payments (e8fe1ad) will increase coverage by 0.84%.
The diff coverage is 67.33%.

Additional details and impacted files

@@                   Coverage Diff                   @@
##           rc-beef-v2-payments     #468      +/-   ##
=======================================================
+ Coverage                52.58%   53.43%   +0.84%     
=======================================================
  Files                      106      108       +2     
  Lines                    11166    11281     +115     
=======================================================
+ Hits                      5872     6028     +156     
+ Misses                    4827     4779      -48     
- Partials                   467      474       +7     

Flag	Coverage Δ
unittests	53.43% <67.33%> (+0.84%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
beef_tx_mock.go	100.00% <100.00%> (ø)
model_bump.go	68.99% <ø> (-0.44%)	⬇️
model_transactions.go	77.89% <ø> (ø)
paymail.go	55.79% <75.00%> (-0.55%)	⬇️
model_draft_transactions.go	73.24% <71.42%> (+0.62%)	⬆️
beef_tx.go	46.00% <66.66%> (+25.22%)	⬆️
beef_bump.go	78.33% <78.33%> (ø)
action_transaction.go	24.77% <0.00%> (-2.79%)	⬇️

... and 1 file with indirect coverage changes

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