bump bwwl python version (#375)

Author: aj-bw

.github/workflows/workflow-linter.yml

@@ -39,11 +39,11 @@ jobs:
             echo "Workflow files changed: $count"
             echo "changed_files_count=$count" >> $GITHUB_OUTPUT
 
-      - name: Set up Python 3.11
+      - name: Set up Python 3.12
         if: steps.changed-workflows.outputs.changed_files_count != '0'
         uses: actions/setup-python@42375524e23c412d93fb67b49958b491fce71c38 # v5.4.0
         with:
-          python-version: "3.11"
+          python-version: "3.12"
 
       - name: Install bwwl binary
         if: steps.changed-workflows.outputs.changed_files_count != '0'