Blender uses depth24 for legacy reasons. All backends that we support
have support for depth32f.
This PR updates all usages of depth24 with depth32f.
- depth24 are not supported on AMD/Intel/Vulkan and Metal. There depth32f
was already used to work around this limitation.
- This allows us to implement reverse depth in workbench, overlay and
grease pencil in the future.
Pull Request: https://projects.blender.org/blender/blender/pulls/140531
a5e30aaa9e