Update main.yml

.github/workflows/main.yml

@@ -24,29 +24,19 @@ jobs:
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       - uses: actions/checkout@v3
-
-      - name: Cache pip
-        uses: actions/cache@v2
         with:
-          path: ~/.cache/pip
-          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
-          restore-keys: |
-            ${{ runner.os }}-pip-
-
-      - name: Cache PlatformIO
-        uses: actions/cache@v2
-        with:
-          path: ~/.platformio
-          key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
+          submodules: "recursive"
 
       - name: Set up Python
-        uses: actions/setup-python@v2
-
+        uses: actions/setup-python@v3
+        with:
+          python-version: "3.9"
+      
       - name: Install PlatformIO
         run: |
-          python -m pip install --upgrade pip
-          pip install --upgrade platformio
-          
+          pip install -U https://github.com/platformio/platformio/archive/develop.zip
+          pio pkg install --global --platform symlink://.          
+      
       - name: Build
         run: |
           pio run