fix(adapter-fetch): Add statusText to the response

[josex2r]

Description

Adds the property statusText to the response returned by fetch.

Motivation and Context

The Response object created by the fetch-adapter may return more info, this could be useful to simulare a real request to the server.

Types of Changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have added tests to cover my changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• My code follows the code style of this project.
• My commits and the title of this PR follow the Conventional Commits Specification.
• I have read the contributing guidelines.

[offirgolan]

Thanks for the PR @josex2r. Once the test changes are fixed I'll go ahead and get this merged.