Update CLA Assistant bot token action to v3

[Ziegler András (AndrasZiegler)]

Summary

Updates the CLA Assistant workflow to use the current version of the GitHub App token action.

Change

Changed:

uses: actions/create-github-app-token@v2

to:

uses: actions/create-github-app-token@v3

Scope

• Repository: SiliconLabsSoftware/silabs-mlops
• Workflow file: .github/workflows/cla.yml
• Branch: SOSC-267-update-cla-action

Validation

• Confirmed the outdated @v2 reference is removed from the affected workflow.
• Confirmed the workflow YAML change is limited to the action version update.
• No functional workflow logic was changed.

Checklist

• Reviewed the workflow diff
• Confirmed the CLA Assistant workflow remains unchanged otherwise
• Confirmed this is ready for review

[cursor]

PR Summary

Low Risk
Single third-party action version pin in CI; no application or auth logic changes beyond the action upgrade.

Overview
Bumps the CLA Assistant workflow step that mints the GitHub App bot token from actions/create-github-app-token@v2 to @v3. No other workflow steps, inputs, or CLA logic change.

^{Reviewed by Cursor Bugbot for commit 4e67fb6. Configure here.}