ci: adopt conda-actions v2.0 (grype scan + drop anaconda-client)

[KedoKudo]

Adopt neutrons/conda-actions v2.0. Validated on CI (see checks).

Changes

1. Bump the four neutrons/conda-actions refs to @v2:
   • pkg-install, pkg-verify: were pinned to a v1-era SHA
   • publish: was @main — v2.0 uploads via pixi upload anaconda (no anaconda install)
   • pkg-remove: was @v1 — v2.0 self-installs anaconda-client
2. Add a dependency-scan job using the new conda-actions/grype action: installs the built .conda and scans the resulting env, uploading SARIF to code scanning (non-blocking — fail-build: false).
3. Drop the anaconda-client dependency from the package feature, now that publish/pkg-remove no longer need it in-project. The local conda-publish task switches to pixi upload anaconda --owner neutrons. pixi.lock regenerated (removes anaconda-client + orphaned transitive deps; typer now sourced from PyPI via toml-cli).

All four actions are input-compatible at v2.0 (verified against the upstream action.yml definitions — no input renames).

Validated by CI

• ✅ pkg-install@v2 + pkg-verify@v2 (conda-build) — real version-match check passed
• ✅ grype@v2 (dependency-scan) — scanned the installed env, uploaded SARIF
• ✅ frozen install + unit tests pass with anaconda-client removed
• ⏸️ publish@v2 / pkg-remove@v2 are gated to next/tags, so they don't run on a PR. Verified by reading the v2.0 source + the upstream dry-run test workflows.

Heads-up

grype reports findings (medium+ with fixes available) to the Security tab as non-blocking alerts.

Scope

python_project_template is the only repo in the group consuming neutrons/conda-actions; others use neutrons/conda-verify (separate repo, unaffected) or call anaconda upload directly.

Assisted-With: Claude Opus 4.8 (1M context)

[github-advanced-security]

You are seeing this message because GitHub Code Scanning has recently been set up for this repository, or this pull request contains the workflow file for the Code Scanning tool.

What Enabling Code Scanning Means:

• The 'Security' tab will display more code scanning analysis results (e.g., for the default branch).
• Depending on your configuration and choice of analysis tool, future pull requests will be annotated with code scanning analysis results.
• You will be able to see the analysis results for the pull request's branch on this overview once the scans have completed and the checks have passed.

For more information about GitHub Code Scanning, check out the documentation.

[Copilot]

Pull request overview

This PR updates the repository’s packaging/deployment pipeline to use neutrons/conda-actions@v2, adds a Grype-based dependency scanning job that uploads SARIF to GitHub code scanning, and removes anaconda-client from the Pixi package feature now that publishing/removal are handled without it.

Changes:

• Switch pkg-install, pkg-verify, publish, and pkg-remove workflow steps to neutrons/conda-actions@v2.
• Add a new dependency-scan job that installs the built .conda artifact and scans the resulting environment using neutrons/conda-actions/grype@v2.
• Remove anaconda-client from pyproject.toml and update the local conda-publish Pixi task to use pixi upload anaconda.

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated no comments.

File	Description
pyproject.toml	Drops anaconda-client from the package feature and updates the local conda publish task to use Pixi’s upload command.
pixi.lock	Regenerates the lockfile to reflect removal of anaconda-client and resulting dependency graph changes.
.github/workflows/test_and_deploy.yaml	Moves conda workflow steps to conda-actions@v2 and adds a Grype dependency-scan job that uploads SARIF results.

Comments suppressed due to low confidence (1)

.github/workflows/test_and_deploy.yaml:185

• ${{ env.CONDA_LABEL }} is not defined anywhere in this workflow, so the label input will resolve to an empty string. Because this overrides the action default (dev), pkg-remove will likely not match any labeled files and won't remove old packages as intended.

          anaconda_token: ${{ secrets.ANACONDA_TOKEN }}
          organization: neutrons
          package_name: ${{ env.PKG_NAME }}
          label: ${{ env.CONDA_LABEL }}
          keep: 5

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[jmborr]

👌