Fix adding location header in 302 Redirect Response #136

[yusefren]

This pull request addresses #136 issue where Location headers were being added to the response when performing a 302 redirect. The expected behaviour is to have the Location header with the correct redirection URL.

Changes:

• Modified the logic to set the Location header value directly using Headers[header] = values, ensuring that only the last value of the Location header is set in the response.
• Added a new test case Redirects302ToCorrectLocation in CustomHeaderTests to verify that the 302 redirect response contains Location header with the correct value.

[aaronpowell]

Superseded by #141