Use upload-architect v7 to publish VSIX directly

[JustinGrote]

Prerequisites

• I have written a descriptive issue title.
• I have searched all issues to ensure it has not already been reported.

Summary

We can now publish single-files directly without zipping them as artifacts. We should definitely publish the .vsix from builds this way to make it far easier for them to be downloaded and installed for testing.

Proposed Design

See https://github.com/JustinGrote/ExcelFast/actions/runs/25408822204 for example

[github-actions]

🎯 Agentic Issue Triage

Summary: Feature request to upgrade actions/upload-artifact from v4 to v7 in the CI workflow, taking advantage of GitHub Actions' new [non-zipped single-file artifact support]((github.blog/redacted) so .vsix files can be downloaded and sideloaded directly without extraction.

📋 Current State

.github/workflows/ci-test.yml currently uses actions/upload-artifact@v4 for both VSIX and test result artifacts, run across a 3-OS matrix (windows-latest, macos-latest, ubuntu-latest):

- name: Upload build artifacts
  uses: actions/upload-artifact@v4
  if: always()
  with:
    name: vscode-powershell-vsix-${{ matrix.os }}
    path: "**/*.vsix"

Artifacts are downloaded as .zip archives from the GitHub Actions UI, meaning users must unzip before installing — an unnecessary friction for testers.

🔧 Proposed Change

Upgrade to actions/upload-artifact@v7 and add the compression-level: 0 or rely on the new non-zip support. The key new flag is:

- name: Upload build artifacts
  uses: actions/upload-artifact@v7
  if: always()
  with:
    name: vscode-powershell-vsix-${{ matrix.os }}
    path: "**/*.vsix"
    compression-level: 0   # or use overwrite/include-hidden-files as needed

Reference implementation: https://github.com/JustinGrote/ExcelFast/actions/runs/25408822204

✅ Implementation Checklist

• Bump actions/upload-artifact from v4 → v7 in .github/workflows/ci-test.yml for the VSIX artifact step
• Bump actions/upload-artifact from v4 → v7 for the test-results artifact step (keep consistent)
• Add compression-level: 0 (or the appropriate v7 option) to the VSIX upload step so the .vsix is stored uncompressed and directly downloadable
• Verify .vsix appears as a direct downloadable file (not .zip) in the Actions run UI
• Check if actions/download-artifact is used anywhere in the repo and upgrade it to match if so
• Update issue-triage.lock.yml pinned SHA if it also needs the upgrade (currently pinned to a v6 SHA — a separate concern)

💡 Notes & Tips

• Each matrix OS already uses a unique artifact name (vscode-powershell-vsix-windows-latest, etc.), so no overwrite: true should be needed.
• actions/upload-artifact@v7 changelog and full options: https://github.com/actions/upload-artifact/releases/tag/v7.0.0
• VS Code extension sideloading docs (useful context for why this matters): (code.visualstudio.com/redacted)
• This is a low-risk, high-value DX improvement — especially useful for PR reviewers and beta testers wanting to quickly validate a build.

Generated by Agentic Triage for issue #5488

To install this workflow, run gh aw add githubnext/agentics/workflows/issue-triage.md@2f03fdaafb8c1ae62dfde7e0be762a822a201aeb. View source at https://github.com/githubnext/agentics/tree/2f03fdaafb8c1ae62dfde7e0be762a822a201aeb/workflows/issue-triage.md.