chg: Simplify submodules checkout

.github/workflows/pytest.yml

@@ -17,15 +17,14 @@ jobs:
     steps:
 
     - uses: actions/checkout@v2
+      with:
+        submodules: recursive
 
     - name: Set up Python ${{matrix.python-version}}
       uses: actions/setup-python@v2
       with:
         python-version: ${{matrix.python-version}}
 
-    - name: Initialize submodules
-      run: git submodule update --init --recursive
-
     - name: Install system dependencies
       run: |
         sudo apt install libemail-outlook-message-perl libemail-address-perl