GLSL file with `#version 460` gets compiled as GLSL450

I'm compiling at runtime using the shaderc library from the Vulkan SDK (1.2.189.2 in my case). I compile a shader with `#version 460` with these options:
```glsl
#version 460
#extension GL_GOOGLE_include_directive : enable
#extension GL_EXT_ray_tracing : enable
#extension GL_EXT_nonuniform_qualifier : enable
#extension GL_EXT_scalar_block_layout : enable
#extension GL_EXT_buffer_reference2 : require
...
```
```cpp
std::unique_ptr includer(new FileIncluder());
options.SetIncluder(std::move(includer));
options.SetOptimizationLevel(shaderc_optimization_level_performance);
options.SetTargetSpirv(shaderc_spirv_version_1_5);
options.SetTargetEnvironment(shaderc_target_env_vulkan, shaderc_env_version_vulkan_1_2);
```
However, through NSight I can see that in the SPIR-V assembly I get GLSL450, which for what I am doing (Vulkan Ray-Tracing) is not supported through NSight (see screenshot).
```spirv
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel PhysicalStorageBuffer64 GLSL450
```