fix: return engine on fatal error

[mattsse]

this will now terminate the node if we encounter a fatal unrecoverable error, (database commit).

[codecov]

Codecov Report

Merging #4184 (4e2c2c7) into main (4ff8bca) will decrease coverage by 0.06%.
Report is 2 commits behind head on main.
The diff coverage is 22.22%.

Files Changed	Coverage Δ
crates/interfaces/src/executor.rs	100.00% <ø> (ø)
crates/consensus/beacon/src/engine/mod.rs	75.22% <22.22%> (-0.57%)	⬇️

... and 11 files with indirect coverage changes

Flag	Coverage Δ
integration-tests	16.92% <0.00%> (-0.01%)	⬇️
unit-tests	64.22% <22.22%> (-0.06%)	⬇️

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

Components	Coverage Δ
reth binary	26.93% <ø> (ø)
blockchain tree	82.83% <ø> (ø)
pipeline	90.07% <ø> (ø)
storage (db)	74.75% <ø> (ø)
trie	94.71% <ø> (ø)
txpool	51.43% <ø> (-0.60%)	⬇️
networking	77.71% <ø> (-0.04%)	⬇️
rpc	58.65% <ø> (-0.03%)	⬇️
consensus	63.53% <22.22%> (-0.20%)	⬇️
revm	32.19% <ø> (ø)
payload builder	6.57% <ø> (ø)
primitives	87.81% <ø> (-0.03%)	⬇️