Add knexIntegration to Node

[mydea]

Description

We want to instrument knex. There is an existing OTEL instrumentation for this:

https://www.npmjs.com/package/@opentelemetry/instrumentation-knex

Tasks

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1. Add new knexIntegration in @sentry/node
2. This should set up the OTEL instrumentation
3. Make sure to add an origin to all spans the integration emits
4. This is a DB integration, make sure it aligns with the DB span schema we expect.
5. Add node-integration-tests for the package
6. The integration should be added by default