BrAPI: Fix ConnectionBuilder configuration

[mobreza]

Description

Fixes issue where FieldBook indicates that http and https are supported, but then the OAuth AuthorizationService uses the built-in default with http disabled.

Type of change

• CHANGE (fix or feature that would cause existing functionality to not work as expected)
• FEATURE (non-breaking change which adds functionality)
• BUGFIX (non-breaking change which fixes an issue)
• ENHANCEMENT (non-breaking change which improves existing functionality)
• NONE (if none of the other choices apply. Example, tooling, build system, CI, docs, etc.)

Checklist:

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have updated relevant documentation

Changelog entry

Improved support for BrAPI servers not using https

[trife]

@mobreza Apologies for the delay, we're working on finalizing a major release and will work on integrating these fixes into v6 over the next month.