Merge pull request #810 from salmanmkc:upgrade-github-actions-node24

PiperOrigin-RevId: 846692015

Author: copybara-github

.github/workflows/build.yml

@@ -33,7 +33,7 @@ jobs:
       cancel-in-progress: true
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
     # Set up ccache
     - name: ccache
@@ -52,7 +52,7 @@ jobs:
       run: cmake --build ${{ github.workspace }}/build --preset ${{ matrix.preset }} --config ${{ matrix.build_type }} -j 4
 
     - name: Archive production artifacts
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v6
       with:
         name: gemma-${{ matrix.os }}-${{ matrix.preset }}-${{ matrix.build_type }}
         path: |