Update dev workflow to checkout the code and submodules first

.github/workflows/dev.yml

@@ -7,6 +7,11 @@ on:
     branches: [dev]
 
 jobs:
+  steps:
+    - name: Checkout repository and submodules
+      uses: actions/checkout@v2
+      with:
+        submodules: recursive
 
   # Containers
   build-containers:
@@ -93,4 +98,4 @@ jobs:
       RELEASE: dev
     secrets:
       PRIVATE_REGISTRY: ${{ secrets.PRIVATE_REGISTRY }}
-      PRIVATE_REGISTRY_TOKEN: ${{ secrets.PRIVATE_REGISTRY_TOKEN }}
+      PRIVATE_REGISTRY_TOKEN: ${{ secrets.PRIVATE_REGISTRY_TOKEN }}