ci: observe Python 3.12 full-dependency resolution

[agourakis82]

Related to #9069. This is a first CI observability step, not a compatibility fix.

Description

Add an informational Ubuntu/Python 3.12 job that installs .[all,testing], runs pip check, and uploads pip freeze as an artifact. The existing Python 3.10 full-dependency test matrix and package bounds are unchanged. The new job does not run the unit suite or establish Python 3.12 compatibility.

Validation

• Parsed the updated workflow with yq.
• git diff --check passed.
• Did not run MONAI unit tests locally; this change is limited to CI configuration.

Types of changes

• Non-breaking CI change.
• New tests added.
• Integration tests passed locally.
• Quick tests passed locally.

Assisted by Codex.

[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Repository: Project-MONAI/MONAI/.coderabbit.yaml
• Review profile: CHILL
• Plan: Advanced
• Run ID: 5df92357-99da-49e2-a711-338cb01dc361

📥 Commits

Reviewing files that changed from the base of the PR and between 94fea07 and 362dee1.

📒 Files selected for processing: 1

• .github/workflows/cicd_tests.yml

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📝 Walkthrough

When test_skip indicates that tests are required, a new Ubuntu job runs with Python 3.12. It installs the complete dependency set, removes ITK, and runs pip check. The job records the resolved packages and uploads them as an artifact, even if an earlier step fails. The job has a 90-minute timeout and continues on error.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to 362de

The new Python 3.12 job provides a non-gating dependency-resolution snapshot when tests are required; it does not claim to establish Python 3.12 compatibility. No merge-blocking risk was identified.

Pre-merge checks: 5

Passed checks: 5 passed

Check name	Status	Explanation
Title check		The title clearly identifies the CI change: observing full-dependency resolution with Python 3.12.
Description check		The description explains the CI job, its scope, validation performed, and change type. It also identifies the related issue and clearly states that Python 3.12 compatibility is not established.
Docstring Coverage		No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create a new PR

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[agourakis82]

@coderabbitai full review

[coderabbitai]

✅ Action performed

Full review finished.

[Copilot]

Copilot review overview

🟢 Approval recommended

The isolated, non-blocking workflow job matches the stated observability scope and preserves existing CI behavior.

Review effort: Balanced
Findings: None

What changed in this PR

Adds a non-blocking Python 3.12 CI job to observe full dependency resolution without changing compatibility guarantees or existing matrices.

Changes:

• Installs all testing dependencies and runs pip check.
• Uploads the resolved environment from pip freeze.

File	Description
.github/​workflows/​cicd_tests.yml	Adds the informational Python 3.12 dependency-resolution job.

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[agourakis82]

Refreshed this branch against upstream dev at 9a6ac14 in b945eba, without conflicts. The observational workflow is byte-identical to the previous public head; the refresh does not modify existing jobs, matrices or gates.

Local validation was limited to Ruby/Psych workflow comparisons, bash syntax and Git whitespace/scope checks. Dependency resolution, MONAI tests and Actions were not run locally. Could a maintainer approve the workflow runs when available so the required jobs can execute?