fix(builder): rework raw sender to support dropped/conditional/split-…

[dancoombs]

Fixes #295
Fixes #296

Proposed Changes

• Remove stand-alone conditional sender. Replace with a CLI flag on the raw sender. They were almost exactly copy/paste.
• Add new CLI argument to control which URL is used for transaction status: node or submit.
• Add dropped status back to transaction tracker
• Add new CLI argument to control if the raw sender supports the dropped status or not.

[0xfourzerofour]

LGTM

[dphilipson]

Looks great!

[codecov]

Codecov Report

Attention: Patch coverage is 24.64789% with 107 lines in your changes missing coverage. Please review.

Project coverage is 54.71%. Comparing base (1ccd847) to head (867b229).

Additional details and impacted files

Files	Coverage Δ
crates/builder/src/transaction_tracker.rs	81.30% <100.00%> (+1.74%)	⬆️
bin/rundler/src/cli/builder.rs	0.00% <0.00%> (ø)
crates/builder/src/task.rs	0.00% <0.00%> (ø)
crates/builder/src/sender/mod.rs	0.86% <0.00%> (-0.20%)	⬇️
crates/builder/src/sender/raw.rs	0.00% <0.00%> (ø)

Flag	Coverage Δ
unit-tests	54.71% <24.64%> (+0.06%)	⬆️

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

Components	Coverage Δ
rundler binary	0.00% <0.00%> (ø)
builder	46.27% <27.55%> (+0.51%)	⬆️
dev	0.00% <ø> (ø)
pool	65.07% <ø> (ø)
provider	16.68% <ø> (ø)
rpc	25.66% <ø> (ø)
sim	77.86% <ø> (ø)
tasks	∅ <ø> (∅)
types	65.45% <ø> (ø)
utils	18.28% <ø> (ø)