Update firmware_build.yml

.github/workflows/firmware_build.yml

@@ -17,9 +17,9 @@ jobs:
           path: ZuluSCSI
           fetch-depth: "0"
       
-#      - name: Install platformio
-#       run: |
-#          sudo pip install platformio
+      - name: Install platformio
+       run: |
+          sudo pip install platformio
       
       - name: Build firmware
         run: |