add swig artifact

Author: LeonieFierz

.github/workflows/pyhton.generate-wrapper.yml

@@ -24,6 +24,11 @@ jobs:
           name: python-sources
           path: python-wrapper/sensirion_gas_index_algorithm/**
           if-no-files-found: error
+      - uses: actions/upload-artifact@v4
+        with:
+          name: swig-sources
+          path: python-wrapper/swig/**
+          if-no-files-found: error
   py3p8_linux_build:
     runs-on: "ubuntu-22.04"
     needs: generate-wrapper
@@ -36,6 +41,10 @@ jobs:
         with:
           name: python-sources
           path: python-wrapper/sensirion_gas_index_algorithm
+      - uses: actions/download-artifact@v4
+        with:
+          name: swig-sources
+          path: python-wrapper/swig
       - name: check source files
         run: ls -al sensirion_gas_index_algorithm
       - uses: actions/setup-python@v5