Update build_esptool.yml

Author: Jason2866

.github/workflows/build_esptool.yml

@@ -179,7 +179,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
         with:
-          ref: master_pio
+          ref: pioarduino
         if: startsWith(github.ref, 'refs/tags/')
       - name: Download artifacts
         uses: actions/download-artifact@v4