[MINOR] Fix python doc os version for restoring code coverage

Author: mboehm7

.github/workflows/documentation.yml

@@ -60,7 +60,7 @@ jobs:
       run: mvn -ntp -P distribution package
 
   doc2:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     name: Python
     steps:
     - name: Checkout Repository
@@ -69,7 +69,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@v5
       with:
-        python-version: 3.8
+        python-version: 3.7
         architecture: 'x64'
 
     - name: Cache Pip Dependencies