Add recursive submodule checkout to CI and CD workflows

Author: rbeucher

.github/workflows/cd.yml

@@ -23,6 +23,8 @@ jobs:
     steps:
       - name: Checkout source
         uses: actions/checkout@v6.0.2
+        with:
+          submodules: recursive
       - name: Set up Python 3.11
         uses: actions/setup-python@v6
         with:
@@ -61,6 +63,8 @@ jobs:
     steps:
       - name: Checkout source
         uses: actions/checkout@v6.0.2
+        with:
+          submodules: recursive
       - name: Download build artifacts from PyPI job
         uses: actions/download-artifact@v7
         with:

.github/workflows/ci.yml

@@ -22,6 +22,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6.0.2
+        with:
+          submodules: recursive
       - uses: prefix-dev/setup-pixi@v0.9.4
         with:
           pixi-version: v0.39.5
@@ -35,6 +37,8 @@ jobs:
     steps:
       - name: Checkout source
         uses: actions/checkout@v6.0.2
+        with:
+          submodules: recursive
 
       - name: Setup pixi
         uses: prefix-dev/setup-pixi@v0.9.4

.github/workflows/full-tests.yml

@@ -23,6 +23,8 @@ jobs:
     steps:
       - name: Checkout source
         uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v5.0.0
+        with:
+          submodules: recursive
 
       - name: Setup pixi
         uses: prefix-dev/setup-pixi@33be5bafa68042a7d0747866e21e5a686bf961a1 # v0.9.0