Update .nvmrc

[XTARZ]

Update .nvmrc to adapt EdgeOne Pages build workflow, deleting this file is more recommended.

What does this PR do?

Fixes #

Type of change

• Bug fix
• New feature
• Refactor (no functional change)
• Documentation update
• Nearly nothing

Checklist

• I have read CONTRIBUTING.md
• I have tested these changes locally and they work
• I can explain every line of code in this PR if asked
• This PR does not contain AI-generated code that I haven't personally reviewed, understood, and tested
• I have not added any unnecessary comments, logging, or dead code
• My code follows the existing style and conventions of the project
• I have updated documentation if applicable

How to test

I just don't understand why the stale version indicator is still here

Screenshots (if UI change)