fix(llama-cpp/darwin): make sure to bundle libutf8 libs (#6060)

fix(darwin): make sure to bundle libutf8_validity

Plus some refactoring, use makefile

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

.github/workflows/backend.yml

@@ -969,10 +969,7 @@ jobs:
       - name: Build llama-cpp-darwin
         run: |
           make protogen-go
-          make build
-          bash scripts/build-llama-cpp-darwin.sh
-          ls -la build/darwin.tar
-          mv build/darwin.tar build/llama-cpp.tar
+          make backends/llama-cpp-darwin
       - name: Upload llama-cpp.tar
         uses: actions/upload-artifact@v4
         with:
@@ -1060,9 +1057,7 @@ jobs:
           make protogen-go
           make build
           export PLATFORMARCH=darwin/amd64
-          bash scripts/build-llama-cpp-darwin.sh
-          ls -la build/darwin.tar
-          mv build/darwin.tar build/llama-cpp.tar
+          make backends/llama-cpp-darwin
       - name: Upload llama-cpp.tar
         uses: actions/upload-artifact@v4
         with:

.github/workflows/test.yml

@@ -214,11 +214,7 @@ jobs:
       - name: Build llama-cpp-darwin
         run: |
           make protogen-go
-          make build
-          bash scripts/build-llama-cpp-darwin.sh
-          ls -la build/darwin.tar
-          mv build/darwin.tar build/llama-cpp.tar
-          ./local-ai backends install "ocifile://$PWD/build/llama-cpp.tar"
+          make backends/llama-cpp-darwin
       - name: Test
         run: |
           export C_INCLUDE_PATH=/usr/local/include