Upgrade GitHub actions

[andres-javier-lopez]

Description

Upgrade github actions

Type of change

• Bugfix
• New feature
• Documentation update
• Refactor
• Chore

Checklist

Please run through the checklist and mark the items off before requesting review.

• Tests added/updated for changes in behavior
• Linter/formatter run (make format / make lint)
• Documentation updated (if applicable)
• CHANGELOG.md updated with a short entry describing the change (Required)

[Copilot]

Pull request overview

Updates the repository’s GitHub Actions workflows to newer action versions and replaces a deprecated release action to avoid legacy Node runtime usage.

Changes:

• Replace deprecated actions/create-release@v1 with softprops/action-gh-release@v2 in the release workflow.
• Bump actions/checkout, actions/setup-python, and actions/cache major versions in CI workflows.
• Add a CHANGELOG entry documenting the workflow release-action replacement.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
CHANGELOG.md	Documents the workflow change from actions/create-release to softprops/action-gh-release.
.github/workflows/test.yml	Updates core actions versions used in PR CI runs.
.github/workflows/main.yml	Updates core actions versions used in main-branch CI runs.
.github/workflows/release.yml	Switches release creation action and updates checkout action version.

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