Formally support node 20 and 21

[cbaker6]

New Feature / Enhancement Checklist

• I am not disclosing a vulnerability.
• I am not just asking a question.
• I have searched through existing issues.

Current Limitation

Node 20 and 21 are not tested in the CI. In addition, node versions 14, 15, and 19 are no longer supported by node

Feature / Enhancement Description

Add support for node 20 and 21

Example Use Case

Use parse on latest node.

Alternatives / Workarounds

Devs run and test on their own.

3rd Party References

https://nodejs.org/en/about/previous-releases

[parse-github-assistant]

Thanks for opening this issue!

• 🎉 We are excited about your ideas for improvement!

[mtrezza]

See #8907 (comment) for why Node 21 is not supported.

[parseplatformorg]

🎉 This change has been released in version 7.0.0-alpha.12

[parseplatformorg]

🎉 This change has been released in version 7.0.0-beta.1

[parseplatformorg]

🎉 This change has been released in version 7.0.0