default minor version

eng/templates/jobs/build.yml

@@ -17,6 +17,12 @@ jobs:
           # Extract the last two digits (minor version) from the branch name
           version=$(echo $(Build.SourceBranchName) | sed 's/dev-\([0-9]*\)/\1/')
           minor_version=${version: -2}  # Get last two digits
+
+          # Check if minor_version is a number; if not, set default to 13
+          if ! [[ "$minor_version" =~ ^[0-9]+$ ]]; then
+            minor_version=13
+          fi
+
           echo "Extracted minor version: $minor_version"
           echo "##vso[task.setvariable variable=pythonVersion]$minor_version"
         displayName: 'Extract Python version from branch name'