[CI] Updated Mac CIS script.

- Upload static lib version as CIS artifact to simplify example startup.
- Use new CompileMetalToMetallib.sh script to bundle default.metallib with apps.
- Use GitHub runner architecture variable in output name instead of fixed "x64".

.github/workflows/ci_macos.yml

@@ -27,7 +27,7 @@ jobs:
 
     - name: Configure CMake
       run: >
-        cmake -S . -B ${{github.workspace}}/macOS-x64
+        cmake -S . -B ${{github.workspace}}/macOS-${{ env.RUNNER_ARCH }}
         -DCMAKE_BUILD_TYPE=${{ matrix.config }}
         -DLLGL_BUILD_STATIC_LIB=${{ matrix.lib == 'Static' && 'ON' || 'OFF' }}
         -DLLGL_BUILD_RENDERER_OPENGL=ON
@@ -39,19 +39,20 @@ jobs:
 
     - name: Build
       run: |
-        cmake --build ${{github.workspace}}/macOS-x64 --config ${{ matrix.config }}
+        cmake --build ${{github.workspace}}/macOS-${{ env.RUNNER_ARCH }} --config ${{ matrix.config }}
+        scripts/CompileMetalToMetallib.sh macosx "${{ github.workspace }}/macOS-${{ env.RUNNER_ARCH }}/build" -v
         CURRENT_TIME=$(date)
         echo "LLGL built with Xcode for macOS on $CURRENT_TIME." > ${{ env.README }}
         echo "Place at root of LLGL repository to run examples and testbed." >> ${{ env.README }}
 
     - name: Upload Binaries
       uses: actions/upload-artifact@v4
-      if: matrix.lib == 'Shared' && matrix.config == 'Release'
+      if: matrix.lib == 'Static' && matrix.config == 'Release'
       with:
-        name: LLGL-macOS-${{ matrix.config }}-x86_64
+        name: LLGL-macOS-${{ matrix.config }}-${{ env.RUNNER_ARCH }}
         path: |
           ${{ env.README }}
-          ${{ github.workspace }}/macOS-x64/build/libLLGL*.dylib
-          ${{ github.workspace }}/macOS-x64/build/Example_*.app
-          ${{ github.workspace }}/macOS-x64/build/Testbed*.app
+          ${{ github.workspace }}/macOS-${{ env.RUNNER_ARCH }}/build/libLLGL*.dylib
+          ${{ github.workspace }}/macOS-${{ env.RUNNER_ARCH }}/build/Example_*.app
+          ${{ github.workspace }}/macOS-${{ env.RUNNER_ARCH }}/build/Testbed*.app