chore: Update outdated GitHub Actions versions

[pgoslatara]

Introduction

To contribute code to the Pathway project, start by discussing your proposed changes on Discord or by filing an issue. Once approved, follow the fork + pull request model against the main branch, ensuring you've signed the contributor license agreement.

Context

This PR updates outdated GitHub Action versions to ensure compatibility and security.

How has this been tested?

The changes will be tested in the CI pipeline of the pull request.

Types of changes

• New feature or improvement (non-breaking change which adds functionality)

Related issue(s):

n/a

Checklist:

• My code follows the code style of this project,
• My change requires a change to the documentation,
• I described the modification in the CHANGELOG.md file.

Changes

• Updated actions/download-artifact from v4 to v7 in .github/workflows/package_test.yml
• Updated actions/download-artifact from v5 to v7 in .github/workflows/release.yml
• Updated actions/upload-artifact from v4 to v6 in .github/workflows/package_test.yml
• Updated aws-actions/configure-aws-credentials from v3 to v5 in .github/workflows/release.yml
• Updated actions/setup-python from v5 to v6 in .github/workflows/release.yml
• Updated actions/upload-artifact from v4 to v6 in .github/workflows/release.yml
• Updated actions/setup-python from v5 to v6 in .github/workflows/package_test.yml
• Updated actions/checkout from v5 to v6 in .github/workflows/release.yml
• Updated actions/checkout from v5 to v6 in .github/workflows/package_test.yml

[CLAassistant]

All committers have signed the CLA.