message: Update RELEASE_NOTES for 1.10.2
diff: This file contains one line summaries of commits that are worthy of mentioning in release notes.
  A new header is inserted each time a *tag* is created.
  -## v1.10.3 (currently main branch)
  +## v1.10.4 (currently main branch)
  +
  +## v1.10.3
  ## v1.10.2
  +- Vulkan: validation and diagnostic improvements
  +- engine: improvements for scenes with many renderables.
  - gltfio: added support for `KHR_materials_ior`.
  +- java: Add bindings for `IBLPrefilterContext`.
  +- java: add `KTXLoader.getSphericalHarmonics` JNI binding
  +- libimage: fix, respect sRGB option for compressed formats.
  +- sample-gltf-viewer: fix lifetime cycle for RemoteServer.
  ## v1.10.1
  