vulkan: set cmake minimum and project name in vulkan-shaders (#12744)

ggml/src/ggml-vulkan/vulkan-shaders/CMakeLists.txt

@@ -1,3 +1,6 @@
+cmake_minimum_required(VERSION 3.19)
+project("vulkan-shaders-gen" C CXX)
+
 find_package (Threads REQUIRED)
 
 if (GGML_VULKAN_COOPMAT_GLSLC_SUPPORT)