expose the py_ver var to the pipeline

Author: sathiya-nhs

azure/cleanup-ecs-pr-proxies.yml

@@ -61,10 +61,12 @@ jobs:
         displayName: cache utils pre-requisites 
 
       - bash: |
-          pyversion="3.13"
+          pyversion=${{ parameters.python_version }}
           PATCH=$(curl -fsSL https://raw.githubusercontent.com/actions/python-versions/main/versions-manifest.json \
           | jq -r --arg pyversion "$pyversion" '[ .[] | select(.stable == true) | .version
           | select(test("^" + ($pyversion|gsub("\\.";"\\.")) + "\\.\\d+$")) | split(".") | map(tonumber)] | max | join(".")')
+
+          echo "##vso[task.setvariable variable=PY_VER]$PATCH"
           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'