[CI] Add PlatformIO test to the workflow

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>

Author: fpistm

.github/workflows/Continuous-Integration.yml

@@ -57,3 +57,14 @@ jobs:
       run: |
         cat ${{ steps.Compile.outputs.compile-result }}
         exit 1
+  pio_build:
+    runs-on: ubuntu-latest
+    name: PlatformIO test
+    steps:
+      # First of all, clone the repo using the checkout action.
+    - name: Checkout
+      uses: actions/checkout@master
+
+    - name: PlatformIO
+      id: Compile
+      uses: ./.github/actions/pio-build