- dont use recursive submodule checkout

Author: fbergmann

.github/workflows/checkout-submodules.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+git submodule update --init --remote
+
+pushd libsbml_dependencies
+
+# only checkout the expat submodule
+git submodule update --init --remote expat
+
+popd

.github/workflows/experimental_wheels.yml

@@ -16,7 +16,11 @@ jobs:
     - uses: actions/checkout@v4
       with:
         fetch-depth: 0  # Optional, use if you use setuptools_scm
-        submodules: recursive  # Optional, use if you have submodules
+        
+    - name: checkout needed submodules
+      shell: bash
+      run: |
+        ./.github/workflows/checkout-submodules.sh
 
     - name: Build SDist
       run: pipx run build --sdist
@@ -34,7 +38,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python_version: ['cp38-*', 'cp39-*', 'cp310-*', 'cp311-*', 'cp312-*']
+        python_version: ['cp39-*', 'cp310-*', 'cp311-*', 'cp312-*', 'cp313-*']
 
     steps:
       - uses: actions/download-artifact@v4
@@ -50,7 +54,7 @@ jobs:
         if: matrix.os == 'macos-latest'
         run: brew install swig
 
-      - uses: pypa/cibuildwheel@v2.16.5
+      - uses: pypa/cibuildwheel@v2.21.3
         env:
             CIBW_BUILD: ${{ matrix.python_version }}
             CIBW_ARCHS_MACOS: x86_64 arm64

.github/workflows/wheels.yml

@@ -11,7 +11,11 @@ jobs:
     - uses: actions/checkout@v4
       with:
         fetch-depth: 0  # Optional, use if you use setuptools_scm
-        submodules: recursive  # Optional, use if you have submodules
+        
+    - name: checkout needed submodules
+      shell: bash
+      run: |
+        ./.github/workflows/checkout-submodules.sh
 
     - name: Build SDist
       run: pipx run build --sdist