Fixes 5th try

Author: forsyth2

.github/workflows/build_workflow.yml

@@ -36,7 +36,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.11, 3.12, 3.13]
+        python-version: [3.11, 3.12]
     defaults:
       run:
         shell: bash -l {0}