fix: tRPC example to support 11.x types

[chamathpali]

Updated the tRPC example guide to support the latest version of tRPC 11.x (next).
Accepted types of CreateAWSLambdaContextOptions has changed to

export type LambdaEvent = APIGatewayProxyEvent | APIGatewayProxyEventV2;

Reference:
https:/trpc/trpc/blob/next/packages/server/src/adapters/aws-lambda/getPlanner.ts#L8
https://trpc.io/docs/server/adapters/aws-lambda#a-word-about-payload-format-version

[jayair]

Thanks!

Can you also make a change to the example app for this: https:/sst/ion/tree/dev/examples/aws-trpc

I can test and merge it.

[chamathpali]

@jayair Updated the PR with the latest trpc example

[jayair]

Thanks!