`.netrc` credentials take precedence over `poetry config http-basic`

• Poetry version: 1.6.1
• Python version: 3.10.12
• OS version and name: Ubuntu 22.04
• pyproject.toml: Irrelevant

• I am on the latest stable Poetry version, installed using a recommended method.
• I have searched the issues of this repo and believe that this is not a duplicate.
• I have consulted the FAQ and blog for any relevant entries or release notes.
• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option) and have included the output below.

Issue

Credentials configured in ~/.netrc are taking precedence over credentials configured with poetry config http-basic.repo-name. I've traced it down to the poetry.utils.Authenticator.request having the proper Authentication header for the credentials configured with poetry config, but the returned resp.request.headers contains the credentials configured in ~/.netrc.

I think this is a bug because the credentials configured explicitly with Poetry should take precedence over catch-all credentials configured in ~/.netrc. There is also no log line with -vvv indicating that credentials from ~./netrc are being used.

Start at the poetry.utils.Authenticator.request entry point and reproduce the behavior with Poetry 1.6.1, comparing poetry config http-basic.repo-name credentials with ~/.netrc. Trace how the request is prepared and how resp.request.headers are populated; done means explicit Poetry credentials take precedence and -vvv logs the credential source.