docs: Add .nvmrc with recommended Node version for development (#904)

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## Description

Add .nvmrc with recommended Node version for development

## Related Issue

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## Motivation and Context

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Our dev dependencies require Node v20 and above. I recommend that people
who contribute use the latest Node version so the libraries we use for
development testing will work properly

## How Has This Been Tested?

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## Types of changes

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- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)

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- [x] My code follows the code style of this project.
- [ ] My change requires a change to the documentation.
- [ ] I have updated the documentation accordingly.
- [ ] I have added tests to cover my changes.
- [x] All new and existing tests passed.
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Co-authored-by: Pierre Cavin <[email protected]>

.nvmrc

@@ -0,0 +1 @@
+stable