update python libraries and github actions

[sliu008]

This pull request updates several GitHub Actions workflow files to use the latest versions of third-party actions for improved reliability, security, and compatibility. The main changes involve bumping the versions of actions such as actions/checkout, actions/setup-python, abatilo/actions-poetry, and actions/upload-artifact across all CI/CD workflow files. Additionally, the AWS credentials action is updated to a newer major version.

Dependency updates across workflows:

• Updated actions/checkout to v7 in all workflows, replacing previous versions (v3 or v4) for consistency and access to the latest features and fixes. [1] [2] [3] [4] [5] [6] [7] [8]
• Updated actions/setup-python to v7 in all workflows, ensuring compatibility with the latest Python setup improvements. [1] [2] [3] [4]
• Updated abatilo/actions-poetry to v4 and bumped the Poetry version from 2.1.3 to 2.3.2 across workflows. [1] [2] [3] [4]
• Updated actions/upload-artifact to v7 for reliable artifact uploads. [1] [2]
• Updated aws-actions/configure-aws-credentials to v6 in the lauchpad-token workflow for improved AWS credential handling.

[Copilot]

Pull request overview

This pull request updates GitHub Actions workflows to newer major versions of core CI actions (checkout, setup-python, Poetry installer, upload-artifact) and bumps the AWS credentials action used by the internal “Launchpad token” composite action.

Changes:

• Bumped actions/checkout and actions/setup-python across workflows.
• Updated abatilo/actions-poetry and Poetry version used in CI.
• Updated actions/upload-artifact and aws-actions/configure-aws-credentials versions.

Reviewed changes

Copilot reviewed 7 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
.github/workflows/verify.yml	Updates checkout/setup-python/poetry and artifact upload action versions used by PR verification.
.github/workflows/update_shortnames.yml	Updates checkout action version for the shortname update automation workflow.
.github/workflows/rerun.yml	Updates checkout action version for the workflow that re-runs PR checks.
.github/workflows/remove_old_pr.yml	Updates checkout/setup-python/poetry action versions for the scheduled cleanup workflow.
.github/workflows/regression.yml	Updates checkout/setup-python/poetry and artifact upload action versions for scheduled regression runs.
.github/workflows/lauchpad-token/action.yml	Updates AWS credentials action used by the composite action that retrieves Launchpad tokens.
.github/workflows/diff.yml	Updates checkout/setup-python/poetry action versions for the association-diff and PR-opening automation.

Suppressed comments (1)

.github/workflows/lauchpad-token/action.yml:26

• The composite action lives at .github/workflows/lauchpad-token/action.yml, but multiple workflows reference ./.github/workflows/launchpad-token (with an "n"). Since launchpad-token does not exist in the repo, those workflows will fail at runtime with "action not found" when trying to uses: this composite action.

    - name: Configure AWS credentials
      uses: aws-actions/configure-aws-credentials@v6
      with:
        aws-access-key-id: ${{ inputs.aws-access-key-id }}
        aws-secret-access-key: ${{ inputs.aws-secret-access-key }}
        aws-region: ${{ inputs.aws-region }}

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[github-actions]

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