test(middleware-sdk-s3): only delete the s3-express bucket created by the test

Issue

Internal JS-5161

Description

Deletes only the s3-express bucket created by the test

Testing

Run middleware-s3-express.e2e.spec.ts test 3 times in parallel.

Before

The tests fail, as they try to delete buckets in use by other tests.

$ yarn test:e2e src/s3-express/middleware-s3-express.e2e.spec.ts & yarn test:e2e src/s3-express/middleware-s3-express.e2e.spec.ts & yarn test:e2e src/s3-express/middleware-s3-express.e2e.spec.ts
...
  ● s3 express CRUD test suite › can presign put

    OperationAborted: A conflicting conditional operation is currently in progress against this resource. Please try again.

      4754 |     default:
      4755 |       const parsedBody = parsedOutput.body;
    > 4756 |       return throwDefaultError({
           |              ^
      4757 |         output,
      4758 |         parsedBody,
      4759 |         errorCode
...

After

The tests succeed, as they only delete the bucket created by the test itself.

$ yarn test:e2e src/s3-express/middleware-s3-express.e2e.spec.ts & yarn test:e2e src/s3-express/middleware-s3-express.e2e.spec.ts & yarn test:e2e src/s3-express/middleware-s3-express.e2e.spec.ts
...
Ran all test suites matching /src\/s3-express\/middleware-s3-express.e2e.spec.ts/i.
Done in 9.73s.
[1]  - done       yarn test:e2e src/s3-express/middleware-s3-express.e2e.spec.ts
Done in 9.71s.
[2]  + done       yarn test:e2e src/s3-express/middleware-s3-express.e2e.spec.ts
Done in 9.76s.

Checklist

[x] If you wrote E2E tests, are they resilient to concurrent I/O?

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aws / aws-sdk-js-v3

test(middleware-sdk-s3): only delete the s3-express bucket created by the test #6077