Update build.yml

.github/workflows/build.yml

@@ -22,9 +22,15 @@ jobs:
           -v "${{ github.workspace }}/build.sh:/home/build/immortalwrt/build.sh" \
           immortalwrt/imagebuilder:x86-64-openwrt-23.05.4 /bin/sh /home/build/immortalwrt/build.sh
 
+      - name: Locate firmware file
+        id: locate_file
+        run: |
+          firmware_file=$(find "${{ github.workspace }}/bin" -name '*squashfs-combined-efi.img.gz' | head -n 1)
+          echo "Firmware file located at $firmware_file"
+          echo "firmware_path=$firmware_file" >> $GITHUB_ENV
+
       - name: Upload firmware
         uses: actions/upload-artifact@v3
         with:
           name: firmware
-          path: |
-            /home/build/immortalwrt/bin/targets/x86/64/immortalwrt-23.05.4-x86-64-generic-squashfs-combined-efi.img.gz
+          path: ${{ env.firmware_path }}