chore(backport release-1.3): fix: improve construction of HTTP transports

[akuitybot]

Automated backport to release-1.3, triggered by a label in #3573.

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[codecov]

Codecov Report

Attention: Patch coverage is 22.80702% with 44 lines in your changes missing coverage. Please review.

Project coverage is 52.63%. Comparing base (1893308) to head (fbbde8d).
Report is 1 commits behind head on release-1.3.

Files with missing lines	Patch %	Lines
internal/cli/cmd/login/login.go	0.00%	10 Missing ⚠️
internal/gitprovider/github/github.go	0.00%	10 Missing ⚠️
internal/gitprovider/gitlab/gitlab.go	0.00%	9 Missing ⚠️
internal/cli/client/client.go	0.00%	8 Missing ⚠️
internal/gitprovider/gitea/gitea.go	0.00%	7 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff               @@
##           release-1.3    #3574      +/-   ##
===============================================
- Coverage        52.64%   52.63%   -0.01%     
===============================================
  Files              296      296              
  Lines            26875    26881       +6     
===============================================
+ Hits             14149    14150       +1     
- Misses           11952    11957       +5     
  Partials           774      774              

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