vendor : update cpp-httplib to 0.44.0 (#22919) #923

Job	Run time
ubuntu-vulkan (x64, ubuntu-22.04)	3m 35s
ubuntu-cpu (s390x, ubuntu-24.04-s390x)	1d 0h 0m 1s
windows-cpu (arm64)	7m 39s
ubuntu-24-openvino	1m 27s
ubuntu-cpu (x64, ubuntu-22.04)	1m 35s
ubuntu-cpu (arm64, ubuntu-24.04-arm)	1m 45s
windows-cpu (x64)	3m 16s
ubuntu-22-rocm (7.2.1, gfx908;gfx90a;gfx942;gfx1030;gfx1100;gfx1101;gfx1102;gfx1151;gfx1150;gfx12...	10m 45s
android-arm64	2m 6s
windows (opencl-adreno, arm64, -G "Ninja Multi-Config" -D CMAKE_TOOLCHAIN_FILE=cmake/arm64-window...	2m 4s
macOS-cpu (arm64, arm64, macos-14, -DGGML_METAL_USE_BF16=ON -DGGML_METAL_EMBED_LIBRARY=ON)	4m 38s
ubuntu-vulkan (arm64, ubuntu-24.04-arm)	2m 42s
macOS-cpu (x64, x64, macos-15-intel, -DGGML_METAL=OFF -DCMAKE_OSX_DEPLOYMENT_TARGET=13.3)	4m 9s
windows (vulkan, x64, -DGGML_VULKAN=ON, ggml-vulkan)	6m 29s
macOS-cpu (arm64-kleidiai, arm64, macos-14, -DGGML_METAL_USE_BF16=ON -DGGML_METAL_EMBED_LIBRARY=O...	2m 8s
ios-xcode-build	23m 38s
ubuntu-24-sycl (fp32)	1m 51s
windows-cuda (12.4)	4m 58s
openEuler-cann (aarch64, 910b, Release, on)	14m 30s
ubuntu-24-sycl (fp16)	2m 0s
openEuler-cann (aarch64, 310p, Release, off)	14m 9s
windows-cuda (13.1)	2h 2m 6s
windows-hip (radeon, gfx1150;gfx1151;gfx1200;gfx1201;gfx1100;gfx1101;gfx1102;gfx1030;gfx1031;gfx1...	3m 1s
windows-sycl	3m 37s
openEuler-cann (x86, 310p, Release, off)	17m 51s
openEuler-cann (x86, 910b, Release, on)	19m 15s
release	-1s
	1d 4h 41m 14s

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