Create canary tests for Cloudflare E2E and integration tests

### Description

We need to check against newer compatibility dates as over time it could be that certain things are getting deprecated or removed.

A basic `wrangler.jsonc` has following attributes:

```json
{
"name": "hono-sdk-worker",
"compatibility_date": "2025-06-17",
}
```

Where the `compatibility_date` is always set to a fixed date in our tests. It would be nice if we would run the Cloudflare E2E and integration tests as `canary` variant with the latest `compatibility_date`. It is technically not treated as canary, but it would be the same behavior. Alternatives can and should be investigated as well.