fix: use larger image VAE encode tiles #2797

Job	Run time
ubuntu-latest-rocm (7.2.1, gfx908;gfx90a;gfx942;gfx1030;gfx1031;gfx1032;gfx1100;gfx1101;gfx1102;g...	6m 18s
windows-latest-cmake (cpu, -DGGML_NATIVE=OFF -DSD_BUILD_SHARED_LIBS=ON -DSD_BUILD_SHARED_GGML_LIB...	5m 12s
ubuntu-latest-cmake-vulkan	9m 53s
windows-latest-cmake (cuda12, -DSD_CUDA=ON -DSD_BUILD_SHARED_LIBS=ON -DCMAKE_CUDA_ARCHITECTURES='...	2h 8m 40s
macOS-latest-cmake	6m 56s
ubuntu-latest-cmake	13m 36s
windows-latest-cmake (vulkan, -DSD_VULKAN=ON -DSD_BUILD_SHARED_LIBS=ON -DGGML_NATIVE=OFF -DSD_BUI...	8m 16s
windows-latest-cmake-hip	3m 32s
ubuntu-latest-rocm (7.13.0, gfx906;gfx908;gfx90a;gfx942;gfx950;gfx1010;gfx1011;gfx1012;gfx1030;gf...	4m 4s
windows-latest-rocm	6m 5s
Build and push container images	-1s
release	0s
	3h 12m 31s

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