fix: multiplexer rpc id can have slash

[bytemain]

Types

• 🐛 Bug Fixes

Background or solution

if rpc id has a slash, rpc wouldn't work:

Error handling request extension_extend_service:kaitian.@opensumi/runner/$fetch with args  [] Error: Unknown actor extension_extend_service:kaitian.@opensumi

Changelog

[railway-app]

This PR is being deployed to Railway 🚅

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.13%. Comparing base (9ff7278) to head (6437711).
Report is 7 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3542      +/-   ##
==========================================
- Coverage   56.15%   56.13%   -0.02%     
==========================================
  Files        1485     1485              
  Lines       90942    90891      -51     
  Branches    17666    18644     +978     
==========================================
- Hits        51070    51026      -44     
+ Misses      39849    33059    -6790     
- Partials       23     6806    +6783     

Flag	Coverage Δ
jsdom	51.50% <100.00%> (-0.01%)	⬇️
node	15.66% <100.00%> (-0.01%)	⬇️

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