chore: update GitHub Actions to latest versions

[vinitkumar]

Summary

Update all GitHub Actions to their latest versions.

Changes

Action	Old Version	New Version
actions/checkout	v4/v4.1.7	v6
actions/setup-python	v3/v5.2.0/v5.5.0	v6
github/codeql-action	v2	v3

Reference

Based on latest versions from: https://simonw.github.io/actions-latest/versions.txt

Files Updated

• .github/workflows/pythonpackage.yml
• .github/workflows/codeql.yml
• .github/workflows/lint.yml
• .github/workflows/publish-to-live-pypi.yml
• .github/workflows/publish-to-test-pypi.yml

Summary by Sourcery

Update CI GitHub Actions workflows to use the latest major versions of core actions.

CI:

• Bump actions/checkout to v6 across all workflows.
• Upgrade actions/setup-python to v6 in linting, testing, and publishing workflows.
• Update github/codeql-action steps to v3 in the CodeQL analysis workflow.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Updates all GitHub workflow files to use the latest major versions of core GitHub Actions (checkout, setup-python, and CodeQL) without changing workflow logic or behavior.

File-Level Changes

Change	Details	Files
Bump CodeQL actions from v2 to v3 in the security scanning workflow.	Update initialization step to use github/codeql-action/init@v3 Update autobuild step to use github/codeql-action/autobuild@v3 Update analysis step to use github/codeql-action/analyze@v3 Keep existing CodeQL configuration (languages, queries, category) unchanged	.github/workflows/codeql.yml
Standardize on actions/checkout@v6 across all workflows.	Replace actions/checkout@v4 and @v4.1.7 references with actions/checkout@v6 Preserve existing checkout options such as persist-credentials where present	.github/workflows/pythonpackage.yml .github/workflows/lint.yml .github/workflows/publish-to-live-pypi.yml .github/workflows/publish-to-test-pypi.yml .github/workflows/codeql.yml
Upgrade all uses of actions/setup-python to v6.	Replace actions/setup-python@v3 with @v6 in publish workflows Replace actions/setup-python@v5.2.0 and @v5.5.0 with @v6 in CI and lint workflows Preserve existing inputs including python-version, cache settings, and allow-prereleases	.github/workflows/pythonpackage.yml .github/workflows/lint.yml .github/workflows/publish-to-live-pypi.yml .github/workflows/publish-to-test-pypi.yml

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.69%. Comparing base (a32cfcf) to head (53d6e66).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #262   +/-   ##
=======================================
  Coverage   99.69%   99.69%           
=======================================
  Files           3        3           
  Lines         330      330           
=======================================
  Hits          329      329           
  Misses          1        1           

Flag	Coverage Δ
unittests	99.69% <ø> (ø)

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[sourcery-ai]

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