Set pr cleanup pipeline to use python 3.13

Author: sathiya-nhs

azure/cleanup-ecs-pr-proxies.yml

@@ -60,6 +60,26 @@ jobs:
           debug: true
         displayName: cache utils pre-requisites 
 
+      - bash: |
+          PATCH=$(curl -s https://api.github.com/repos/actions/python-versions/releases \
+            | jq -r '[.[] | .tag_name | select(startswith("3.13"))] | .[]' \
+            | sort -V | tail -n 1 | cut -d- -f1)
+          echo "Resolved latest python version: $PATCH"
+          echo "##vso[task.setvariable variable=LD_LIBRARY_PATH;]/agent/_work/_tool/Python/${PATCH}/x64/lib/"
+        displayName: 'Query and set python tool cache path'            
+
+      - task: UsePythonVersion@0
+        name: UsePy
+        displayName: "Use Python 3.13"
+        inputs:
+          versionSpec: 3.13
+
+      - bash: |
+          echo "Checking the python version in use to set LD_LIBRARY_PATH"
+          echo "Python location: $(UsePy.pythonLocation)"
+          echo "##vso[task.setvariable variable=LD_LIBRARY_PATH]$(UsePy.pythonLocation)/lib"
+        displayName: 'Set LD_LIBRARY_PATH'
+
       - bash: |
           make install
         displayName: install dependencies