Update build-upload.yml

Author: mayeut

.github/workflows/build-upload.yml

@@ -137,9 +137,9 @@ jobs:
         uses: actions/cache@v5  # zizmor: ignore[cache-poisoning]
         with:
           path: "${{ runner.temp }}/cibw_cache"
-          key: cibw-${{ matrix.build || matrix.platform }}-${{ matrix.archs }}-${{ hashFiles('.github/workflows/build-upload.yml') }}
+          key: cibw-${{ matrix.build || matrix.platform }}-${{ join(matrix.archs, '-') }}-${{ hashFiles('.github/workflows/build-upload.yml') }}
           restore-keys: |
-            cibw-${{ matrix.build || matrix.platform }}-${{ matrix.archs }}-
+            cibw-${{ matrix.build || matrix.platform }}-${{ join(matrix.archs, '-') }}-
 
       - name: Build wheels
         uses: pypa/cibuildwheel@298ed2fb2c105540f5ed055e8a6ad78d82dd3a7e # v3.3.1