Optimize QUIC for high latency links

[bvscd]

No description provided.

[Copilot]

Pull request overview

Updates the ADNL QUIC transport configuration to better suit high-latency links and simplifies stream-concurrency handling by relying more on quinn’s transport-level limits, with call-site and test updates across node components.

Changes:

• Configure QUIC transport to use BBR congestion control (client + server).
• Add UDP socket offload capability probing (GSO/GRO/may_fragment) during endpoint creation.
• Remove the per-connection stream semaphore / constructor parameter and update all QuicNode::new call sites; adjust QUIC tests accordingly.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/adnl/src/quic/mod.rs	Adds BBR + UDP caps probe; removes per-connection stream semaphore and updates QUIC connection handling.
src/adnl/tests/test_quic.rs	Updates QuicNode::new usage, refactors helper creation, and removes the stream-limit test tied to the removed semaphore.
src/node/src/network/node_network.rs	Updates QuicNode::new call to match the new signature.
src/node/consensus-common/src/node_test_network.rs	Updates QuicNode::new call to match the new signature.
src/node/tests/compat_test/src/test_helpers.rs	Updates QuicNode::new call to match the new signature.

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