fix: avoid HTTP zero connections

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 33.33333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 61.50%. Comparing base (5124413) to head (d095cb7). Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/protocol/http/fetcher.go	33.33%	1 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #729 +/- ## ========================================== + Coverage 61.48% 61.50% +0.02% ========================================== Files 35 35 Lines 3609 3611 +2 ========================================== + Hits 2219 2221 +2 + Misses 1117 1115 -2 - Partials 273 275 +2 ```

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