test(amazonq): update view diff test (#6777)

## Problem
- source code change for /test which adds a test plan summary after
generating tests, but did not update e2e test to account for this

## Solution
- update test

---

- Treat all work as PUBLIC. Private `feature/x` branches will not be
squash-merged at release time.
- Your code changes must meet the guidelines in
[CONTRIBUTING.md](https://github.com/aws/aws-toolkit-vscode/blob/master/CONTRIBUTING.md#guidelines).
- License: I confirm that my contribution is made under the terms of the
Apache 2.0 license.

Merge master into feature/serverlessland

Merge master into feature/sdkv3

Merge master into feature/q-utg

Merge master into feature/falcon

Merge master into feature/emr

Merge master into feature/amazonqLSP

toolkit version 3.49.0 Thu Mar 6 18:26:32 UTC 2025

amazonq version 1.50.0 Thu Mar 6 18:26:21 UTC 2025

Merge master into feature/stepfunctions-workflow