fix(workflow/linux-musl): remove Vulkan support from linux-musl-gpu builds

Author: Gioee

.github/workflows/main.yml

@@ -44,15 +44,15 @@ jobs:
             arch: x86_64
             name: linux-musl-gpu
             container: alpine:latest
-            make: LLAMA="-DGGML_NATIVE=OFF -DGGML_CPU=ON -DGGML_VULKAN=OFF -DGGML_OPENCL=ON"
+            make: LLAMA="-DGGML_NATIVE=OFF -DGGML_CPU=ON -DGGML_OPENCL=ON"
           - os: ubuntu-22.04-arm
             arch: arm64
             name: linux-musl-cpu
             make: LLAMA="-DGGML_NATIVE=OFF -DGGML_CPU=ON -DGGML_CPU_ARM_ARCH=armv8.2-a"
           - os: ubuntu-22.04-arm
             arch: arm64
             name: linux-musl-gpu
-            make: LLAMA="-DGGML_NATIVE=OFF -DGGML_CPU=ON -DGGML_VULKAN=OFF -DGGML_OPENCL=ON"
+            make: LLAMA="-DGGML_NATIVE=OFF -DGGML_CPU=ON -DGGML_OPENCL=ON"
           - os: windows-2022
             arch: x86_64
             name: windows-cpu