fix: forceGlobalSecureRequests break URI schemes other than HTTP

[kenjis]

Description
Fixes #5728

Checklist:

• Securely signed commits
• [] Component(s) with PHPDoc blocks, only if necessary or adds value
• Unit testing, with >80% coverage
• [] User guide updated
• Conforms to style guide

[kenjis]

@MGatner

URI should not be in the business of dealing with baseURL at all, but since this is currently the case we can't remove it entirely. #4646

What's happened if it is removed?

[MGatner]

There's a lot of functionality based on URI and people have been told to use it for working with their project URLs. I even made a PR at one point to split these into two classes but ultimately it was too complicated. For now we need to leave this and plan to change it in version 5.