test: add test cases for gosdk v2 index

[ThreadDao]

issue: #33419

• Add test cases for gosdk v2 index
• Add sparse index for go client

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.85%. Comparing base (c16a704) to head (059d5f8).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #34431      +/-   ##
==========================================
- Coverage   80.89%   80.85%   -0.04%     
==========================================
  Files        1114     1114              
  Lines      138511   138511              
==========================================
- Hits       112043   111995      -48     
- Misses      22232    22263      +31     
- Partials     4236     4253      +17     

see 37 files with indirect coverage changes

[yanliang567]

/lgtm
/approve

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

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