PHP warnings from SQLite integration

Not sure if this is better reported here or https://github.com/WordPress/sqlite-database-integration, I hope someone else knows.

I am getting this PHP warning (twice) when opening the block editor:

```
Warning: strtotime(): Epoch doesn't fit in a PHP integer in /wordpress/wp-content/plugins/sqlite-database-integration/wp-includes/sqlite/class-wp-sqlite-translator.php on line 40
```