upgrade dependencies & node version to 20

[fvh-P]

In GitHub Actions, setting up rdflint using imas/setup-rdflint@v2 action will display the following warning.

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: imas/setup-rdflint@v2. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20

Node.js v16 is already deprecated, so this PR will upgrade Node.js to v20, and upgrade dependencies at the same time.
I Run npm run build and node dist/index.js in local and verified that rdflint.jar and the startup script are successfully set up in local.

[foooomio]

Thanks!