Fix quic write

[turuslan]

• fix lsquic_stream_write should retry
• fix quic version
• batch defer stream flush
• batch defer process
• simplify read/write retry callback
• cmake preset with vcpkg

[Copilot]

Pull request overview

This PR updates the QUIC (lsquic-based) transport to improve write retry behavior and reduce per-write processing overhead by batching stream flushes/engine processing. It also pins the QUIC version used by lsquic and adds build/dev tooling updates (vcpkg baseline + CMake preset).

Changes:

• Add deferred write retry when lsquic_stream_write() returns 0 (send buffer full) and simplify read/write retry callbacks.
• Batch stream flush requests and defer Engine::process() via a wantProcess() mechanism; set lsquic QUIC version mask.
• Update vcpkg configuration baseline and add a CMakePresets.json preset for vcpkg builds.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
vcpkg-configuration.json	Updates vcpkg baseline and removes artifact registry config.
src/transport/quic/stream.cpp	Adds retry-on-0 write path and defers flushing via engine batching.
src/transport/quic/engine.cpp	Pins QUIC version, adds on_write, and implements batched flush + deferred processing.
include/libp2p/transport/quic/stream.hpp	Adds Engine friendship to allow engine-driven flush access.
include/libp2p/transport/quic/engine.hpp	Adds flush/process batching state to engine and stream context.
CMakePresets.json	Adds a vcpkg-based configure preset for Ninja builds.

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