[DEVOPS-1750] Change structure of sm-sdk-go repo

[michalchecinski]

Type of change

- [ ] Bug fix
- [ ] New feature development
- [ ] Tech debt (refactoring, code cleanup, dependency upgrades, etc)
- [x] Build/deploy pipeline (DevOps)
- [ ] Other

Objective

Code changes

• .github/workflows/release-go.yml: Move schemas.go artifact to the sm-sdk-go repo root and repack zip artifacts to include only needed (libbitwarden_c.*) files.

Before you submit

• Please add unit tests where it makes sense to do so

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 60.61%. Comparing base (c66892b) to head (644fe22).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #677      +/-   ##
==========================================
+ Coverage   60.39%   60.61%   +0.22%     
==========================================
  Files         172      170       -2     
  Lines       10553    10387     -166     
==========================================
- Hits         6373     6296      -77     
+ Misses       4180     4091      -89     

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