add pg option to turn off attributes (#32)

## Summary

Updates the `@highlight-run/node` SDK per customer request.

Allow customers to control `pg` instrumentation via new setting.
Fix express.js middleware handler incorrectly representing the end of an
API request.
Update dependency definition to correctly reference option types from
`highlight.run`

## How did you test this change?

spans showing correct duration
<img width="1518" alt="Screenshot 2025-05-14 at 00 39 24"
src="https://github.com/user-attachments/assets/f6261ffd-dd6a-4f10-b2e5-a8475f341ae0"
/>

<img width="1319" alt="Screenshot 2025-05-14 at 00 39 48"
src="https://github.com/user-attachments/assets/504a413e-8f07-4f6e-8692-ec1456eb0599"
/>

<img width="441" alt="Screenshot 2025-05-14 at 00 55 41"
src="https://github.com/user-attachments/assets/1c45e65a-6196-4048-9dff-428ee05e0791"
/>

with the `disablePgInstrumentationAttributes` setting off
<img width="1347" alt="Screenshot 2025-05-14 at 00 57 23"
src="https://github.com/user-attachments/assets/b875e191-660e-451f-84ba-b5ad4cc63a5f"
/>

## Are there any deployment considerations?

<!--
 Backend - Do we need to consider migrations or backfilling data?
-->

## Does this work require review from our design team?

<!--
 Request review from julian-highlight / our design team
-->

Author: Vadman97

e2e/nextjs/src/app/api/app-router-test/route.ts

@@ -2,7 +2,6 @@
 import { withAppRouterHighlight } from '@/app/_utils/app-router-highlight.config'
 import logger from '@/highlight.logger'
 import { statfsSync } from 'node:fs'
-import { Client } from 'pg'
 import { z } from 'zod'
 
 export const GET = withAppRouterHighlight(async function GET(request: Request) {
@@ -16,6 +15,8 @@ export const GET = withAppRouterHighlight(async function GET(request: Request) {
 	if (sql === 'true') {
 		try {
 			console.info('😇 Connecting to Postgres...')
+			const { Client } = await import('pg')
+
 			const pgClient = new Client({
 				user: 'postgres',
 				database: 'postgres',

e2e/nextjs/src/instrumentation.ts

@@ -9,7 +9,7 @@ export const highlightConfig = {
 	environment: 'e2e-test',
 	enableFsInstrumentation: true,
 	disableConsoleRecording: false,
-	debug: false,
+	disablePgInstrumentationAttributes: false,
 } as NodeOptions
 
 export async function register() {