Update Python version to 3.12.x for py2docfx in docindex.yml and archetype-python-release.yml

Agent-Logs-Url: https://github.com/Azure/azure-sdk-for-python/sessions/60fd0893-f7f3-44c5-a476-cdb8c88cdb36

Co-authored-by: danieljurek <2158838+danieljurek@users.noreply.github.com>

Author: Copilot

eng/pipelines/docindex.yml

@@ -34,11 +34,11 @@ jobs:
       DocRepoOwner: MicrosoftDocs
       DocRepoName: azure-docs-sdk-python
     steps:
-      # py2docfx requires Python >= 3.11
+      # py2docfx requires Python >= 3.12.x, match docs pipeline version specification
       - task: UsePythonVersion@0
-        displayName: 'Use Python 3.11'
+        displayName: 'Use Python 3.12.x'
         inputs:
-          versionSpec: '3.11'
+          versionSpec: '3.12.x'
 
       # Docs CI upgrades pip, wheel, and setuptools
       - pwsh: python -m pip install --upgrade pip wheel setuptools

eng/pipelines/templates/stages/archetype-python-release.yml

@@ -442,11 +442,11 @@ stages:
               Get-ChildItem -Recurse $(Pipeline.Workspace)/${{parameters.ArtifactName}}/
             displayName: Show visible artifacts
 
-          # py2docfx requires Python >= 3.11
+          # py2docfx requires Python >= 3.12.x, match docs pipeline version specification
           - task: UsePythonVersion@0
-            displayName: 'Use Python 3.11'
+            displayName: 'Use Python 3.12.x'
             inputs:
-              versionSpec: '3.11'
+              versionSpec: '3.12.x'
 
           - template: /eng/pipelines/templates/steps/auth-dev-feed.yml
             parameters: