fix(ci): add libasound2-dev dependency for Linux release builds

The alsa-sys crate requires ALSA development libraries to build on Linux.
The CI workflow had this dependency but it was missing from the release workflow,
causing all Linux builds to fail.

This adds libasound2-dev installation for all Linux build targets:
- x86_64-unknown-linux-gnu
- aarch64-unknown-linux-gnu
- x86_64-unknown-linux-musl
- aarch64-unknown-linux-musl

Author: echobt

.github/workflows/release.yml

@@ -149,13 +149,21 @@ jobs:
           prefix-key: "rust-release-cli-${{ matrix.target }}"
           shared-key: ${{ needs.prepare.outputs.cache_key }}
 
+      # =========================================================================
+      # Linux dependencies (required for alsa-sys crate)
+      # =========================================================================
+      - name: Install Linux dependencies
+        if: runner.os == 'Linux'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libasound2-dev
+
       # =========================================================================
       # Static musl build setup (for portable Linux binaries)
       # =========================================================================
       - name: Install musl toolchain (x86_64 static)
         if: matrix.target == 'x86_64-unknown-linux-musl'
         run: |
-          sudo apt-get update
           sudo apt-get install -y musl-tools musl-dev
           # Verify musl-gcc is available
           which musl-gcc
@@ -164,7 +172,6 @@ jobs:
       - name: Install musl toolchain (aarch64 static)
         if: matrix.target == 'aarch64-unknown-linux-musl'
         run: |
-          sudo apt-get update
           # For cross-compiling to aarch64-musl, we need the cross toolchain
           sudo apt-get install -y musl-tools musl-dev gcc-aarch64-linux-gnu
           # Install aarch64-linux-musl-gcc cross compiler