Add node:buffer imports where missing

[jokull]

This is an issue on workerd runtime (Cloudflare Workers). It came up before and was fixed with the same import statement in in drizzle-orm/src/sqlite-core/columns/blob.ts. Now Buffer is being used in two new places.

On this note ... I do wonder if we should be avoiding Buffer to begin with and using Uint8Array instead. See recent-ish blog post from Sindre Sorhus.

Buffer also comes with additional caveats. While Uint8Array#slice() creates an immutable copy, Buffer#slice() creates a mutable segment linked to the original Buffer, resulting in possible unpredictable behavior. The problem is not the behavior of the Buffer#slice() method, but the fact that Buffer is a subclass of Uint8Array and completely changes the behavior of an inherited method. Instead of Buffer#slice(), use Uint8Array#subarray() or Buffer#subarray(). Furthermore, buffers expose private information through global variables, a potential security risk.

It is time to move on.

[jokull]

Ok cloudflare workers is actually fixing this with improved node compatibility - still think Buffer should be avoided.

https://x.com/jasnell/status/1795872790962385390