improve build workflow

.github/workflows/build.yml

@@ -1,31 +1,24 @@
 name: Build Project
 on:
   push:
-    paths:
-      - "src/**"
-      - "lib/**"
   pull_request:
-    paths:
-      - "src/**"
-      - "lib/**"
 
 jobs:
   build:
     name: Build
-    runs-on: windows-latest
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
         with:
-          submodules: "recursive" # Ensure submodules are checked out
+          submodules: "recursive" # Checkout submodules
 
-      - name: Set up MSYS2
-        uses: msys2/setup-msys2@v2
-        with:
-          update: true
-          install: mingw-w64-x86_64-arm-none-eabi-gcc make
+      - name: Install ARM GCC Toolchain
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y gcc-arm-none-eabi make
 
       - name: Build project
         run: |
-          make -j24 V=1
-        shell: msys2 {0}
+          make -j$(nproc) V=1
+        shell: bash