docs(CHANGELOG): change #6257 entry to match PR title

Author: ErichDonGubler

CHANGELOG.md

@@ -157,7 +157,7 @@ By @bradwerth [#6216](https://github.com/gfx-rs/wgpu/pull/6216).
 
 #### Vulkan
 
-- Vulkan debug labels assumed no interior nul byte. By @DJMcNab in [#6257](https://github.com/gfx-rs/wgpu/pull/6257)
+- Avoid undefined behaviour with adversarial debug label. By @DJMcNab in [#6257](https://github.com/gfx-rs/wgpu/pull/6257)
 - Add `.index_type(vk::IndexType::NONE_KHR)` when creating `AccelerationStructureGeometryTrianglesDataKHR` in the raytraced triangle example to prevent a validation error. By @Vecvec in [#6282](https://github.com/gfx-rs/wgpu/pull/6282)
 
 ### Changes