fix(buffer): use node:buffer instead of safe-buffer

[ymeskini]

Since express@5 will support a minimum of nodejs version 18, I think it would be safe to use node:buffer

Cc @wesleytodd @UlisesGascon

[bjohansebas]

This would require dropping support for older versions, because it still supports Node.js versions that have vulnerabilities with the buffer

[UlisesGascon]

Hey @ymeskini! Thanks for your PR!

The session library is still compatible with [email protected] so this change can't be merged until the next major (in case that we drop support for old Node.js versions).

So, I will move this PR to draft to avoid accidental merges 👍

[wesleytodd]

Additionally before this could be merged, we would need to also remove it from the package.json. But I agree, leaving it in draft until the next major (which may honestly be quite a while) is a good idea.