fix: set references to python version file as absolute positions due to multiple checkout oddities arising

Author: 56kyle

.github/workflows/merge-demo-feature.yml

@@ -49,7 +49,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version-file: ".github/workflows/.python-version"
+          python-version-file: "${{ github.workspace }}/cookiecutter-robust-python/.github/workflows/.python-version"
 
       - name: Merge Demo Feature PR into Develop
         working-directory: "${{ github.workspace }}/${{ matrix.demo_name }}"

.github/workflows/update-demo.yml

@@ -35,7 +35,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version-file: ".github/workflows/.python-version"
+          python-version-file: "${{ github.workspace }}/cookiecutter-robust-python/.github/workflows/.python-version"
 
       - name: Update Demo
         working-directory: "${{ github.workspace }}/cookiecutter-robust-python"