Astro: Update to use the detected package manager

pages/astro.yml

@@ -40,12 +40,10 @@ jobs:
           if [ -f "${{ github.workspace }}/yarn.lock" ]; then
             echo "::set-output name=manager::yarn"
             echo "::set-output name=command::install"
-            echo "::set-output name=runner::yarn"
             exit 0
           elif [ -f "${{ github.workspace }}/package.json" ]; then
             echo "::set-output name=manager::npm"
             echo "::set-output name=command::ci"
-            echo "::set-output name=runner::npx --no-install"
             exit 0
           else
             echo "Unable to determine packager manager"
@@ -57,9 +55,14 @@ jobs:
           node-version: "16"
           cache: ${{ steps.detect-package-manager.outputs.manager }}
           cache-dependency-path: ${{ env.BUILD_PATH }}/package-lock.json
-      - run: npm install && npm run build
+      - name: Install dependencies
+        run: ${{ steps.detect-package-manager.outputs.manager }} ${{ steps.detect-package-manager.outputs.command }}
         working-directory: ${{ env.BUILD_PATH }}
-      - uses: actions/upload-pages-artifact@v1
+      - name: Build with Astro
+        run: ${{ steps.detect-package-manager.outputs.manager }} run build
+        working-directory: ${{ env.BUILD_PATH }}
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v1
         with:
           path: ${{ env.BUILD_PATH }}/dist