Add changelog entry

CHANGELOG.md

@@ -68,6 +68,8 @@ the same every time it is rendered, we now warn if it is missing.
 - Improve the validation and error reporting of buffer mappings by @nical in [#2848](https://github.com/gfx-rs/wgpu/pull/2848)
 - Fix compilation errors when using wgpu-core in isolation while targetting `wasm32-unknown-unknown` by @Seamooo in [#2922](https://github.com/gfx-rs/wgpu/pull/2922)
 - Fixed opening of RenderDoc library by @abuffseagull in [#2930](https://github.com/gfx-rs/wgpu/pull/2930)
+- Added missing validation for `BufferUsages` mismatches when `Features::MAPPABLE_PRIMARY_BUFFERS` is not
+  enabled. By @imberflur in [#3023](https://github.com/gfx-rs/wgpu/pull/3023)
 
 #### Metal
 - Add the missing `msg_send![view, retain]` call within `from_view` by @jinleili in [#2976](https://github.com/gfx-rs/wgpu/pull/2976)