deps: every crate to its latest version, wgpu 28 -> 30

`cargo upgrade --incompatible` in each of the nine workspaces here, then
`cargo update`. Most of it is version numbers only -- log, winit,
bytemuck, image, tokio, libc, android_logger, proc-macro2/quote, and syn
2 -> 3 with no source change. The wg-app-link submodule's twelve
dependencies were already at their latest majors, so that shared
repository needs no commit.

wgpu 28 -> 30 (and pollster 0.4 -> 1.0) is the part with API in it:
bind-group and vertex-buffer slots are optional now, `Instance::new`
takes an owned `InstanceDescriptor` carrying the platform's display
handle (the desktop passes winit's, since wgpu wants it for a GLES
surface presented on Wayland -- which is what this machine's fallback
produces; Android passes none), `RequestAdapterOptions` and
`SurfaceConfiguration` each gained a field kept at its historical value,
`get_current_texture` answers with an enum instead of a Result, and
`present` moved onto the queue.

The one that would not have failed at compile time: naga now requires
`@interpolate(flat)` on integer varyings, so `shader.wgsl`'s three u32
outputs were rejected at `create_shader_module` -- an abort on the device
rather than a build error. Flat is the only interpolation an integer can
have, so this states what the hardware already did.

Checked: build, clippy, fmt and tests in all nine workspaces (iris 196,
server 160); layer 2 screenshots on Vulkan and on force-gles, identical;
the arm64 release APK builds and the x86_64 bench ran a full
fling/stream/type/keyboard cycle on the emulator's GLES adapter.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

rigs/gpu-probe/src/main.rs

@@ -66,9 +66,9 @@ fn iris_limits() -> Limits {
 fn main() {
     vk::report();
 
-    let instance = Instance::new(&InstanceDescriptor {
+    let instance = Instance::new(InstanceDescriptor {
         backends: Backends::from_env().unwrap_or(Backends::PRIMARY),
-        ..Default::default()
+        ..InstanceDescriptor::new_without_display_handle()
     });
 
     let adapters = pollster::block_on(instance.enumerate_adapters(Backends::all()));
@@ -100,6 +100,7 @@ fn main() {
         power_preference: PowerPreference::default(),
         compatible_surface: None,
         force_fallback_adapter: false,
+        ..Default::default()
     }))
     .ok() else {
         println!("\nNO ADAPTER");