Merge pull request linorobot#73 from atticusrussell/rolling

Fix CI by using separate action to install PlatformIO environment

Author: grassjelly

.github/actions/platformio-env/action.yml

@@ -0,0 +1,15 @@
+name: 'platformio-env'
+description: 'Install Platform.IO environment'
+runs:
+  using: "composite"
+  steps:
+    - id: install-platformio-env
+      shell: bash
+      run: |
+        sudo apt-get update
+        export DEBIAN_FRONTEND=noninteractive
+        sudo apt-get install -y git curl python3 python3-pip python3-venv git cmake
+        curl -fsSL -o get-platformio.py https://raw.githubusercontent.com/platformio/platformio-core-installer/master/get-platformio.py
+        python3 get-platformio.py
+        echo 'export PATH=$PATH:~/.platformio/penv/bin' >> ~/.bashrc
+