🐛 BUG: Cannot create a string longer than 0x1fffffe8 characters

### Which Cloudflare product(s) does this pertain to?

D1

### What version of `Wrangler` are you using?

3.0.0

### What operating system are you using?

Ubuntu

### Describe the Bug

Create a big sqlite database (>2GB), follow this guide https://developers.cloudflare.com/d1/learning/importing-data/#converting-sqlite-database-files
```
✘ [ERROR] Could not read file: db.sql

Cannot create a string longer than 0x1fffffe8 characters

If you think this is a bug, please open an issue at:
https://github.com/cloudflare/workers-sdk/issues/new/choose

```
Probably have to stream/chunk big DBs?

Start with Wrangler's D1 import flow described in the linked SQLite conversion guide and reproduce the failure using a database larger than 2GB. Trace where db.sql is read, then verify that large imports no longer hit the string-length error and that the documented import flow completes successfully.

Written by the indexing model from the issue text.