[feature] upgrade CI's Node.js version to 20 and 22

[nomeguy]

see PR: #508

it runs Node.js 18 and 20, needs to change to 20 and 22

[main / test (^18) (pull_request)](https://github.com/casbin/node-casbin/actions/runs/19271700681/job/55101420459?pr=508)
main / test (^18) (pull_request)Successful in 45s
[main / test (^20) (pull_request)](https://github.com/casbin/node-casbin/actions/runs/19271700681/job/55101420455?pr=508)
main / test (^20) (pull_request)Successful in 48s

[github-actions]

🎉 This issue has been resolved in version 5.41.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀