refactor: consolidate WAN VAE version checks #2704

Job	Run time
windows-latest-rocm	2h 8m 35s
windows-latest-cmake (vulkan, -DSD_VULKAN=ON -DSD_BUILD_SHARED_LIBS=ON -DGGML_NATIVE=OFF -DSD_BUI...	8m 2s
windows-latest-cmake (cpu, -DGGML_NATIVE=OFF -DSD_BUILD_SHARED_LIBS=ON -DSD_BUILD_SHARED_GGML_LIB...	4m 28s
ubuntu-latest-rocm (7.13.0, gfx906;gfx908;gfx90a;gfx942;gfx950;gfx1010;gfx1011;gfx1012;gfx1030;gf...	2h 15m 10s
ubuntu-latest-rocm (7.2.1, gfx908;gfx90a;gfx942;gfx1030;gfx1031;gfx1032;gfx1100;gfx1101;gfx1102;g...	1h 28m 0s
ubuntu-latest-cmake-vulkan	16m 30s
macOS-latest-cmake	8m 5s
ubuntu-latest-cmake	12m 56s
windows-latest-cmake-hip	1h 21m 34s
windows-latest-cmake (cuda12, -DSD_CUDA=ON -DSD_BUILD_SHARED_LIBS=ON -DCMAKE_CUDA_ARCHITECTURES='...	2h 2m 14s
Build and push container images	-6s
release	0s
	10h 5m 28s

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