Add CPU LibTorch build variant to release workflow

Author: DarumaDocker

.github/workflows/release.yml

@@ -10,8 +10,21 @@ permissions:
 
 jobs:
   build-x86_64:
-    name: Build (x86_64)
+    name: Build (x86_64, ${{ matrix.libtorch_variant }})
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        libtorch_variant: [cu124, cpu]
+        include:
+          - libtorch_variant: cu124
+            libtorch_url: https://download.pytorch.org/libtorch/cu124/libtorch-cxx11-abi-shared-with-deps-2.4.0%2Bcu124.zip
+            archive_suffix: -cuda
+            artifact_suffix: -cuda
+          - libtorch_variant: cpu
+            libtorch_url: https://download.pytorch.org/libtorch/cpu/libtorch-cxx11-abi-shared-with-deps-2.4.0%2Bcpu.zip
+            archive_suffix: ""
+            artifact_suffix: ""
     steps:
       - name: Install base dependencies
         shell: bash
@@ -35,9 +48,9 @@ jobs:
         shell: bash
         run: |
           set -euo pipefail
-          curl -LO https://download.pytorch.org/libtorch/cu124/libtorch-cxx11-abi-shared-with-deps-2.4.0%2Bcu124.zip
-          unzip libtorch-cxx11-abi-shared-with-deps-2.4.0%2Bcu124.zip
-          rm libtorch-cxx11-abi-shared-with-deps-2.4.0%2Bcu124.zip
+          curl -L "${{ matrix.libtorch_url }}" -o libtorch.zip
+          unzip libtorch.zip
+          rm libtorch.zip
           libtorch_dir="$(pwd)/libtorch"
           echo "LIBTORCH=$libtorch_dir" >> "$GITHUB_ENV"
           if [ -n "${LD_LIBRARY_PATH:-}" ]; then
@@ -66,7 +79,7 @@ jobs:
             exit 1
           fi
 
-          archive_name="silero_vad_server-${{ github.ref_name }}-x86_64-unknown-linux-gnu.tar.gz"
+          archive_name="silero_vad_server-${{ github.ref_name }}-x86_64-unknown-linux-gnu${{ matrix.archive_suffix }}.tar.gz"
           mkdir -p dist
           cp "$binary_path" dist/silero_vad_server
           chmod +x dist/silero_vad_server
@@ -78,7 +91,7 @@ jobs:
       - name: Upload artifact
         uses: actions/upload-artifact@v4
         with:
-          name: silero_vad_server-x86_64-unknown-linux-gnu
+          name: silero_vad_server-x86_64-unknown-linux-gnu${{ matrix.artifact_suffix }}
           path: ${{ steps.package.outputs.archive }}
 
   build-aarch64:
@@ -171,7 +184,7 @@ jobs:
     runs-on: ubuntu-latest
     needs:
       - build-x86_64
-      - build-aarch64
+      # - build-aarch64
     steps:
       - name: Download artifacts
         uses: actions/download-artifact@v4