Resolve warning issue with error handler mismatch warning

[ahopkins]

Resolve #2450

[codecov]

Codecov Report

Merging #2452 (e4432bf) into main (5d683c6) will decrease coverage by 0.059%.
The diff coverage is 100.000%.

@@              Coverage Diff              @@
##              main     #2452       +/-   ##
=============================================
- Coverage   87.225%   87.166%   -0.060%     
=============================================
  Files           60        60               
  Lines         5057      5057               
  Branches       909       909               
=============================================
- Hits          4411      4408        -3     
- Misses         475       477        +2     
- Partials       171       172        +1     

Impacted Files	Coverage Δ
sanic/handlers.py	95.384% <100.000%> (ø)
sanic/server/protocols/http_protocol.py	84.523% <0.000%> (-3.572%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 5d683c6...e4432bf. Read the comment docs.