fix: that protoc-gen-go-triple cannot generate normally when a proto file has multiple services.

[r27153733]

fixed #2646

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 47.40%. Comparing base (2f5143a) to head (d313148).
Report is 4 commits behind head on main.

❗ Current head d313148 differs from pull request most recent head 5275c2c. Consider uploading reports for the commit 5275c2c to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2647      +/-   ##
==========================================
+ Coverage   47.38%   47.40%   +0.02%     
==========================================
  Files         341      341              
  Lines       25122    25125       +3     
==========================================
+ Hits        11904    11911       +7     
+ Misses      12074    12069       -5     
- Partials     1144     1145       +1     

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[DMwangnima]

Can you add a testcase to verify your change?

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

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[chickenlj]

The whole protoc plugin has been moved to a separate repo. I will merge this change first and move the source code there.