fix: update Node.js to v22.12.0 for npm 11.x compatibility

[jaseemjaskp]

Problem

The publish workflow is failing with:

npm ERR! code EBADENGINE
npm ERR! engine Unsupported engine
npm ERR! engine Not compatible with your version of node/npm: npm@11.7.0
npm ERR! notsup Required: {"node":"^20.17.0 || >=22.9.0"}
npm ERR! notsup Actual:   {"npm":"10.5.0","node":"v21.7.1"}

Solution

Update .nvmrc from v21.7.1 to v22.12.0 (Node.js 22 LTS).

npm v11.x (required for trusted publishing with OIDC) requires Node.js ^20.17.0 || >=22.9.0. Node.js 21.x is an odd-numbered release and is not in the supported range.