[BUG] vulkanmemallocator is missing snprintf header

[kasperk81]

I am converging debian an alpine toolchains on top of #3192 and ran into an error with clang-19 on debian amd64 cross-compiling for alpine riscv64:

error: 'snprintf' was not declared in this scope
[  424s]  2817 |         snprintf(outStr, strLen, "%u", static_cast<unsigned int>(num));
[  424s]       |         ^~~~~~~~

tracked it to
https://github.com/mono/skia/blob/1c3113af31028b19affaff5d71f47c920acbe4f4/DEPS#L59

which is >2y old because it's missing this patch GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator@29d492b

[kasperk81]

@mattleibow can we bump the BAZEL dependency in mono/skia or apply that tiny patch some other way?

[mattleibow]

I think you can bump the SHA in the DEPS file in the skia repo root.