fix: restrict max active queries

[mattsse]

ref #4155

this enforces that only x queries are active at a time

we should increase the rate separately

[codecov]

Codecov Report

Merging #4178 (9f36178) into main (d152c9e) will decrease coverage by 0.01%.
Report is 1 commits behind head on main.
The diff coverage is 100.00%.

Files Changed	Coverage Δ
crates/net/common/src/ratelimit.rs	87.64% <100.00%> (+0.43%)	⬆️
crates/net/dns/src/query.rs	95.27% <100.00%> (ø)

... and 6 files with indirect coverage changes

Flag	Coverage Δ
integration-tests	16.92% <100.00%> (+<0.01%)	⬆️
unit-tests	64.25% <100.00%> (+<0.01%)	⬆️

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

Components	Coverage Δ
reth binary	26.81% <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> (ø)
networking	77.75% <100.00%> (-0.03%)	⬇️
rpc	58.69% <ø> (+0.02%)	⬆️
consensus	63.73% <ø> (ø)
revm	32.18% <ø> (ø)
payload builder	6.57% <ø> (ø)
primitives	87.83% <ø> (ø)