Fix publishing build (#570)

Author: adamjmcgrath

.github/workflows/docs.yml

@@ -27,7 +27,7 @@ jobs:
       - name: Configure Python
         uses: actions/setup-python@v5
         with:
-          python-version: "3.7"
+          python-version: "3.8"
 
       - name: Configure dependencies
         run: |

.github/workflows/publish.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Configure Python
         uses: actions/setup-python@v5
         with:
-          python-version: "3.7"
+          python-version: "3.8"
 
       - name: Configure dependencies
         run: |