Update examples.yml

Author: Jason2866

.github/workflows/examples.yml

@@ -49,7 +49,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install wheel
-          pip install -U https://github.com/platformio/platformio/archive/develop.zip
+          pip install -U https://github.com/pioarduino/platformio-core/archive/refs/tags/v6.1.16.tar.gz
           pio pkg install --global --platform file://.
         if: "matrix.os == 'windows-2022'"
         env:
@@ -67,7 +67,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install wheel
-          pip install -U https://github.com/platformio/platformio/archive/develop.zip
+          pip install -U https://github.com/pioarduino/platformio-core/archive/refs/tags/v6.1.16.tar.gz
           pio pkg install --global --platform file://.
         if: "matrix.os != 'windows-2022'"
       - name: git clone Tasmota and add to examples