Upgrade llama.cpp from b9637 to b9642 #333

Job	Run time
Start gate (abort window)	42s
Cross-Compile manylinux_2_28 x86_64 (CUDA)	1s
Cross-Compile manylinux2014 x86_64	1s
Build and Test macOS 14 arm64 (Metal)	1s
Cross-Compile Android aarch64	1s
Cross-Compile Linux aarch64 (LTS)	1s
Build and Test Windows 2025 x86_64 (VS 2026)	1s
C++ Tests Ubuntu Latest x86_64	1s
Cross-Compile Android aarch64 (OpenCL/Adreno)	1s
Build and Test macOS 15 arm64 (Metal)	1s
Build and Test macOS 15 arm64 (no Metal)	1s
Java Tests Ubuntu Latest x86_64	1s
Java Tests macOS 15 arm64 (Metal)	1s
Code style (spotless) + package graph	1s
Java Tests macOS 14 arm64 (Metal)	1s
Test (vmlens interleavings)	1s
Build and Test Windows 2025 x86 (VS 2026)	1s
Java Tests macOS 15 arm64 (no Metal)	1s
Java Tests Windows 2025 x86_64 (VS 2026)	1s
Package JARs	1s
Report	1s
Check: v* tag	1s
Check: main branch / SNAPSHOT	1s
Publish Snapshot to Central	1s
Attach Signed Binaries to GitHub Release	1s
Update Snapshot Pre-release on GitHub	1s
Publish Release to Central	1s
	1m 8s

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