github action to check for cla

[laurenfrederick]

Description

Issue number or link

Author checklist

• I have submitted a Contributor License Agreement (only needed once).
• I have done a full self-review of my code.
• I have updated CHANGES.md with a short summary of my change (for user-facing changes).
• I have added or updated unit tests to ensure consistent code coverage as necessary.
• I have updated the documentation as necessary.

Remaining Tasks

Testing plan

Reviewer checklist

Thank you for taking the time to review this PR. By approving a PR you are taking as much responsibility for these changes as the author.

As you review, please go through the checklist below:

• Review and run all parts of the test plan on this branch and verify it matches expectations.
  • If the issue is a bug please make sure you can reproduce the bug in the main branch and then checkout this branch to make sure it actually solved the issue.
• Review the code and make sure you do not have any remaining questions or concerns. You should understand the code change and the chosen approach. If you are not confident or have doubts about the code, please do not hesitate to ask questions.
  • Code should follow the C++ Style Guide
• Review the unit tests and make sure there are no missing tests or edge cases.
• Review documentation changes and updates to CHANGES.md to make sure they accurately cover the work in this PR.
• Verify that the Contributor License Agreement has been submitted, if needed.

[github-actions]

Thank you for the pull request, @laurenfrederick! Welcome to the Cesium community!

In order for us to review your PR, please complete the following steps:

• Send in a Contributor License Agreement (CLA)

Review Pull Request Guidelines to make sure your PR gets accepted quickly.

[j9liu]

@laurenfrederick Looks like https://cesium.com/learn/cesium-native/ref-doc/contributing.html#contributor-license-agreement-cla is outdated -- it still points to the Google forms (rather than the new Microsoft ones)