fixes: OpenAPI Spec Viewer: throws resolver errors for $ref schemas - #8892

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/setup-node@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Unexpected var, use let or const instead

Unexpected var, use let or const instead

Unexpected var, use let or const instead

Unexpected var, use let or const instead

Expected '!==' and instead saw '!='

Expected '===' and instead saw '=='

Expected '!==' and instead saw '!='

Expected '===' and instead saw '=='

Expected '===' and instead saw '=='