[ci] Change macOS version (#9229)

.github/workflows/tests.yml

@@ -30,7 +30,7 @@ jobs:
         os:
           - "ubuntu-latest"
           - "windows-latest"
-          - "macos-13"
+          - "macos-latest"
         transformers:
           - null
         include:  # test backward compatibility
@@ -75,10 +75,11 @@ jobs:
         run: |
           python -m pip install "transformers==${{ matrix.transformers }}"
 
-      - name: Install transformers to avoid mac os ci errors
-        if: ${{ matrix.os == 'macos-13' }}
+      - name: Update accelerate to avoid mac os ci errors (before accelerate 1.11.0)
+        if: ${{ matrix.os == 'macos-latest' }}
         run: |
-          python -m pip install "transformers<=4.51.3"
+          python -m pip uninstall -y accelerate
+          python -m pip install "git+https://github.com/huggingface/accelerate.git"
 
       - name: Cache files
         id: hf-hub-cache