ci: upgrade workflow actions to current releases

[aryasaatvik]

Summary

Upgrade the workflow action pins to the current releases, matching the platform repository and clearing the Node 20 deprecation warning on runs.

Changes

Action	From	To
actions/checkout	v4.4.0	v7.0.1
actions/setup-node	v4.4.0	v7.0.0
actions/upload-artifact	v4.6.2	v7.0.1
actions/download-artifact	v4.3.0	v8.0.1

oven-sh/setup-bun (v2.2.0) and denoland/setup-deno (v2.0.5) were already current.

Review notes

• SHA-pinned and comment-annotated like the rest of the repo; all five workflow files parse as YAML.
• Direct push to main is blocked by the repository ruleset requiring a pull request, so this lands as a PR.
• The platform repo (AryaLabsHQ/samva) received the equivalent upgrade directly on main in 5fbb3a295a (actions/github-script v9.0.0, aws-actions/configure-aws-credentials v6.3.0, pnpm/action-setup v6.1.0).

[github-actions]

Tegami

This repository uses Tegami to manage releases. When your changes affect published packages, add a changelog file under .tegami/ before merging.

Create a changelog → · Changelog format

Release preview

Package	Bump	Version
@samva/email-sdk	minor	0.1.1 → 0.2.0
@samva/better-auth	minor	0.1.1 → 0.2.0

This PR does not add changelog files. Pending changelogs from other branches are included in the preview above.

Run bun run tegami locally to create a changelog interactively.

_{Managed by Tegami.}

[greptile-apps]

Confidence Score: 5/5

The PR appears safe to merge because the upgraded actions remain compatible with the existing hosted runners and workflow configuration.

Summary

This PR updates immutable GitHub Actions pins across the CI and release workflows to current Node 24-based action releases.

• Upgrades actions/checkout in all five workflows.
• Upgrades actions/setup-node in the release-related workflows.
• Upgrades the paired release-plan artifact upload and download actions.
• Preserves existing workflow inputs, permissions, artifact names, paths, and trigger relationships.

Diagram

%%{init: {'theme': 'neutral'}}%%
flowchart LR
  PR[Pull request] --> Plan[Release plan workflow]
  Plan --> Upload[Upload release-plan artifact]
  Upload --> Completed[workflow_run completed]
  Completed --> Download[Download release-plan artifact]
  Download --> Comment[Post pull request comment]

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