chore(deps): upgrade alsa crate 0.9 -> 0.10

Remove dead alsa dependency from src-tauri/Cargo.toml (code lives in
qbz-audio since V2 migration) and bump qbz-audio to alsa 0.10.
Eliminates duplicate alsa versions in Cargo.lock.

Breaking changes in 0.10 (Format/ChmapPosition reorder) do not affect
QBZ — we use catch-all matches and never rely on PartialOrd.

Closes #260

cc

crates/qbz-audio/Cargo.toml

@@ -38,7 +38,7 @@ dirs = "5"
 
 [target.'cfg(target_os = "linux")'.dependencies]
 # ALSA for direct hardware access (bit-perfect)
-alsa = "0.9"
+alsa = "0.10"
 
 [target.'cfg(target_os = "macos")'.dependencies]
 # CoreAudio for device probing, sample rate switching, and (future) hog mode / exclusive mode