fix: set the correct rpc response type when meet an error

[MrLYC]

Go runner always return the request rpc type as response type, according to the protocol, it should return RPCError when meet an error.

[soulbird]

Let's merge the master branch to run E2E Test.

[codecov-commenter]

Codecov Report

Merging #102 (71906e7) into master (bd5d11f) will decrease coverage by 1.74%.
The diff coverage is 27.77%.

@@            Coverage Diff             @@
##           master     #102      +/-   ##
==========================================
- Coverage   82.38%   80.64%   -1.75%     
==========================================
  Files          14       14              
  Lines         897      899       +2     
==========================================
- Hits          739      725      -14     
- Misses        113      132      +19     
+ Partials       45       42       -3     

Impacted Files	Coverage Δ
internal/server/server.go	53.90% <27.77%> (-11.97%)	⬇️

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more