XRAY-139364 - Automatically set VSC properties on uploaded artifacts

[attiasas]

feat(artifactory): attach local git VCS properties to published artifacts (XRAY-139364)

Following:

• feature: Automatically set CI VCS properties on uploaded artifacts #348

Summary

Extends artifact VCS property collection beyond CI environment variables. When CI VCS props are missing or incomplete, the CLI now discovers local git metadata (vcs.url, vcs.revision, vcs.branch) from the working directory and attaches it to artifacts during upload/publish flows. User-provided properties still take precedence over both CI and local git values.

Changes

• Core VCS utilities (artifactory/utils/civcs/):
  • Add localvcs.go with local git discovery via upstream .git search
  • Add MergeWithUserAndDetectedProps and SetVcsPropsToConfig with precedence: user props > CI props > local git props
  • Refactor VCS property keys to shared constants; add DeriveSearchDirFromUploadPattern for upload pattern resolution
• artifactory/utils/vcs.go: Add GetDotGitFromDir to locate a git repo root from a given directory
• Publish/upload commands wired to local VCS fallback:
  • rt upload (generic upload)
  • rt bp (buildinfo publish)
  • Docker push/publish (OCI container)
  • Helm push, Conan upload, Python twine/uv, Hugging Face upload, Nix copy
  • Flexpack (Gradle/Maven), npm/pnpm publish, Go publish, Terraform publish
  • Gradle/Maven extractors via SetVcsPropsToConfig
• Tests: New/updated unit tests across civcs, generic upload, buildinfo publish, npm, pnpm, terraform, conan, and per-command VCS smoke tests (helm, nix, flexpack, huggingface, python twine, docker build)

Testing

• All tests passed for affected packages:

  go test ./artifactory/utils/... ./artifactory/commands/buildinfo/... \
    ./artifactory/commands/conan/... ./artifactory/commands/flexpack/... \
    ./artifactory/commands/helm/... ./artifactory/commands/huggingface/... \
    ./artifactory/commands/nix/... ./artifactory/commands/npm/... \
    ./artifactory/commands/ocicontainer/... ./artifactory/commands/pnpm/... \
    ./artifactory/commands/python/... ./artifactory/commands/terraform/... -count=1

[attiasas]

continue at: #484