Address Regression Service Coverage Error (#36543)

* address issue with ensure service coverage

Author: scbedd

eng/pipelines/templates/jobs/ci.yml

@@ -307,6 +307,9 @@ jobs:
             Selection: sparse
             GenerateVMJobs: true
       PreGenerationSteps:
+        - task: UsePythonVersion@0
+          inputs:
+            versionSpec: '3.12'
         - pwsh: |
             python -m pip install "./tools/azure-sdk-tools[build]"
           displayName: 'Prep Environment'