feat: Support restful & go sdk for Int8Vector

[cydrain]

Issue: #38666

[sre-ci-robot]

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[mergify]

@cydrain go-sdk check failed, comment rerun go-sdk can trigger the job again.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.65%. Comparing base (3a6408b) to head (3747fd7).
Report is 6 commits behind head on master.

❗ There is a different number of reports uploaded between BASE (3a6408b) and HEAD (3747fd7). Click for more details.

HEAD has 2 uploads less than BASE

Flag	BASE (3a6408b)	HEAD (3747fd7)
	3	1

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #39278       +/-   ##
===========================================
- Coverage   81.07%   69.65%   -11.43%     
===========================================
  Files        1404      299     -1105     
  Lines      198272    26799   -171473     
===========================================
- Hits       160752    18667   -142085     
+ Misses      31867     8132    -23735     
+ Partials     5653        0     -5653     

Components	Coverage Δ
Client	∅ <ø> (∅)
Core	69.65% <ø> (ø)
Go	∅ <ø> (∅)

see 1105 files with indirect coverage changes

[mergify]

@cydrain E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[mergify]

@cydrain go-sdk check failed, comment rerun go-sdk can trigger the job again.

[mergify]

@cydrain E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.