chore: make proto module pub

[mattsse]

closes #4776

make proto messages pub

[codecov]

Codecov Report

Merging #4788 (bc0530d) into main (e255dd8) will increase coverage by 0.02%.
Report is 5 commits behind head on main.
The diff coverage is n/a.

Files	Coverage Δ
crates/net/discv4/src/lib.rs	64.82% <ø> (ø)
crates/net/discv4/src/proto.rs	92.63% <ø> (ø)

... and 12 files with indirect coverage changes

Flag	Coverage Δ
integration-tests	16.51% <ø> (+0.01%)	⬆️
unit-tests	63.42% <ø> (+0.02%)	⬆️

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

Components	Coverage Δ
reth binary	32.23% <ø> (ø)
blockchain tree	83.69% <ø> (ø)
pipeline	88.53% <ø> (ø)
storage (db)	73.49% <ø> (ø)
trie	94.45% <ø> (-0.04%)	⬇️
txpool	49.97% <ø> (+0.46%)	⬆️
networking	76.83% <ø> (-0.04%)	⬇️
rpc	57.67% <ø> (ø)
consensus	62.84% <ø> (ø)
revm	28.33% <ø> (ø)
payload builder	8.20% <ø> (ø)
primitives	86.52% <ø> (+0.02%)	⬆️