[Docs] Update node supported version#3240

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pump-node-supported-version

Commits on Feb 3, 2026

Update Node.js version requirement for Playground CLI documentation across multiple languages to 22.12 LTS
fellyph
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Update contributor-day documentation across multiple languages to reflect Node.js version change to 22.12 LTS and improve formatting for clarity.
fellyph
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Fixing formatting
fellyph
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