pio-build.yaml: fix workflow v4 so now bin files are in root of .zip file

Author: dingo35

.github/workflows/pio-build.yaml

@@ -103,6 +103,8 @@ jobs:
           rm -f "$secret_file"
           mv ./SmartEVSE-3/.pio/build/release/firmware.bin ./SmartEVSE-3/.pio/build/release/firmware.debug.bin
           mv ./SmartEVSE-3/.pio/build/release/firmware.signed.bin ./SmartEVSE-3/.pio/build/release/firmware.debug.signed.bin
+          # prevent the .bin files are gathered in .pio directory in the dists-zip file:
+          cp -a ./SmartEVSE-3/HowToFlash.txt ./SmartEVSE-3/.pio/build/release/firmware.debug.signed.bin
       
       # Combined upload for all artifacts using v4
       - name: Upload all artifacts
@@ -111,7 +113,7 @@ jobs:
           name: dists_zip
           path: |
             ./SmartEVSE-3/.pio/build/release/*.bin
-            ./SmartEVSE-3/HowToFlash.txt
+            ./SmartEVSE-3/.pio/build/release/HowToFlash.txt
           retention-days: 10
           compression-level: 6
           overwrite: true