Upgrade python versions < 3.11 to 3.11 (Azure#47039)

* Upgrade python versions < 3.11 to 3.11

* There are 2 installs of python

* Undo docindex changes which were extraneous spaces that were removed when I'd opened it in the editor

Author: JimSuplizio

eng/pipelines/templates/jobs/ci.yml

@@ -99,9 +99,9 @@ jobs:
           echo "##vso[task.setvariable variable=VersioningProperties]$versioningProperties"
         displayName: "Setup .NET specific versioning properties"
       - task: UsePythonVersion@0
-        displayName: 'Use Python 3.9'
+        displayName: 'Use Python 3.11'
         inputs:
-          versionSpec: '3.9'
+          versionSpec: '3.11'
       - template: /eng/pipelines/templates/steps/dotnet-diagnostics.yml
         parameters:
           LogFilePath: $(Build.ArtifactStagingDirectory)/pack.binlog
@@ -267,9 +267,9 @@ jobs:
         os: windows
       steps:
         - task: UsePythonVersion@0
-          displayName: "Use Python 3.9"
+          displayName: "Use Python 3.11"
           inputs:
-            versionSpec: "3.9"
+            versionSpec: "3.11"
 
         - template: /eng/common/pipelines/templates/steps/validate-filename.yml