Fix: Simplify TestHttpServer Drop logic to prevent test flakiness

[dlachaume]

Content

This PR includes an update to the Drop implementation of TestHttpServer, removing the recv_timeout call that was previously used to wait for the server thread to signal its shutdown.

This change fixes flakiness in CI tests, likely caused by the blocking behavior of block_on, which can delay the server thread's shutdown signal.

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• Branch
  • Tests are provided (if possible)
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  • CHANGELOG file is updated (if relevant)
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• PR
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[github-actions]

Test Results

    3 files  ±0     77 suites  ±0   14m 12s ⏱️ - 1m 9s
1 913 tests ±0  1 912 ✅  - 1  0 💤 ±0  1 ❌ +1 
3 225 runs  ±0  3 224 ✅  - 1  0 💤 ±0  1 ❌ +1 

For more details on these failures, see this check.

Results for commit eb9b803. ± Comparison against base commit 2b88e17.

♻️ This comment has been updated with latest results.

[turmelclem]

LGTM