Send cookies to allowed domains

[ShiraNagen]

Currently, superagent.agent() sends cookies to all requests without checking if the domains match the cookies and are allowed to use them.
This pull request solves this issue #1758.

Checklist

• I have ensured my pull request is not behind the main or master branch of the original repository.
• I have rebased all commits where necessary so that reviewing this pull request can be done without having to merge it first.
• I have written a commit message that passes commitlint linting.
• I have ensured that my code changes pass linting tests.
• I have ensured that my code changes pass unit tests.
• I have described my pull request and the reasons for code changes along with context if necessary.

[titanism]

v8.0.8 released

https://github.com/ladjs/superagent/releases/tag/v8.0.8

[titanism]

thank you for your contributions @ShiraNagen 👏 🎉