bindless_images/vulkan_interop/sampled_images_semaphore.cpp fails to build

[sarnex]

Describe the bug

https://github.com/intel/llvm/actions/runs/21368985240/job/61508307232?pr=14114

.---command stderr------------
  # | In file included from D:\github\_work\llvm\llvm\llvm\sycl\test-e2e\bindless_images\vulkan_interop\sampled_images_semaphore.cpp:9:
  # | D:\github\_work\llvm\llvm\llvm\sycl\test-e2e\bindless_images\vulkan_interop\sampled_images.cpp:222:14: error: implicit conversion from 'float' to 'OutType' (aka 'char') changes value from 0.5 to 0 [-Werror,-Wliteral-conversion]
  # |   222 |       return 0.5f;
  # |       |       ~~~~~~ ^~~~
  # | D:\github\_work\llvm\llvm\llvm\sycl\test-e2e\bindless_images\vulkan_interop\sampled_images.cpp:472:7: note: in instantiation of function template specialization 'run_sycl<void *, void *, 3, char, 2, sycl::image_channel_type::signed_int8, int8_3d>' requested here
  # |   472 |       run_sycl<decltype(input_mem_handle), decltype(sycl_wait_semaphore_handle),
  # |       |       ^

To reproduce

1. Include a code snippet that is as short as possible
2. Specify the command which should be used to compile the program
3. Specify the command which should be used to launch the program
4. Indicate what is wrong and what was expected

Environment

• OS: [e.g Windows/Linux]
• Target device and vendor: [e.g. Intel GPU]
• DPC++ version: [e.g. commit hash or output of clang++ --version]
• Dependencies version: [e.g. the output of sycl-ls --verbose]

Additional context

No response