fix(router): fix wrong config key

[yangpixi]

Description

fix wrong config key when getting config from configCenter.

#3203

Checklist

• I confirm the target branch is develop
• Code has passed local testing
• I have added tests that prove my fix is effective or that my feature works

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 47.91%. Comparing base (60d1c2a) to head (9572b4f).
⚠️ Report is 736 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3220      +/-   ##
===========================================
+ Coverage    46.76%   47.91%   +1.14%     
===========================================
  Files          295      463     +168     
  Lines        17172    33744   +16572     
===========================================
+ Hits          8031    16168    +8137     
- Misses        8287    16271    +7984     
- Partials       854     1305     +451     

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[Alanxtl]

lgtm