Update install-ci.yml

[coreyjadams]

This commit hits several items:

• update version for several actions to quiet node js version 20 warnings.
• enable python 3.14(159) for nightly CI.
• does not pivot PR install CI away from 3.13.

I'm putting this on the main repo so we can test it here, rather than on my fork.

This pr will fix #1516

PhysicsNeMo Pull Request

Description

Checklist

• I am familiar with the Contributing Guidelines.
• New or existing tests cover these changes.
• The documentation is up to date with these changes.
• The CHANGELOG.md is up to date with these changes.
• An issue is linked to this pull request.
• If I am implementing a new model or modifying any existing model, I have followed the Models Implementation Coding Standards.

Dependencies

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[greptile-apps]

Greptile Summary

This PR updates .github/workflows/install-ci.yml to bump GitHub Actions versions, add Python 3.14 to nightly CI, and drop the v2.0-refactor branch from the PR trigger list. The action upgrades (actions/checkout@v4→v6, actions/setup-python@v5→v6) are valid, released versions that address Node.js v20 deprecation warnings. Python 3.14 (released October 2025) is correctly added only to the push and scheduled/manual matrix entries, leaving PR CI on 3.12 only.

• actions/checkout bumped from v4 to v6 (latest: v6.0.2).
• actions/setup-python bumped from v5 to v6 (latest: v6.1.0); note that v6 requires runner v2.327.1 or later — verify your self-hosted or GitHub-hosted runners meet this minimum if applicable.
• Python 3.14 added to push (ubuntu only) and schedule/workflow_dispatch (ubuntu, ubuntu-24.04-arm, macos-latest, windows-latest) matrix entries.
• v2.0-refactor removed from PR trigger branches.
• The inline comment describing the matrix job counts (lines 47–50) is now stale and undercounts jobs after the 3.14 additions.

Important Files Changed

Filename	Overview
.github/workflows/install-ci.yml	Updates action versions (checkout v4→v6, setup-python v5→v6), removes v2.0-refactor PR trigger branch, and adds Python 3.14 to nightly/push CI matrix. A stale comment on job counts and Python version references is the only minor issue.

Comments Outside Diff (1)

1. .github/workflows/install-ci.yml, line 47-50 (link)

   Stale job count/version comments

   The matrix description comment now has incorrect job counts and an outdated Python version reference after adding Python 3.14:

   • push now runs 4 jobs (3.11, 3.12, 3.13, 3.14), not 3.
   • schedule/manual now runs 10 jobs, not 6.
   • The arm/mac/win platforms now test both 3.13 and 3.14, not just 3.13.

_{Reviews (1): Last reviewed commit: "Update pyproject.toml" | Re-trigger Greptile}

[peterdsharpe]

All these changes look in-concept good to me. Thanks for implementing this! Now we just need to get TransformerEngine to play nice in CI! 😅

[peterdsharpe]

/blossom-ci