Symlink dev-platform

Author: ivankravets

.github/workflows/examples.yml

@@ -70,7 +70,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install -U https://github.com/platformio/platformio/archive/develop.zip
-          platformio platform install file://.
+          pio pkg install --global --platform symlink://.
       - name: Build examples
         run: |
           platformio run -d ${{ matrix.example }}