Use python 3.9 in python-38.yml

Author: rffontenelle

.github/workflows/python-38.yml

@@ -11,11 +11,13 @@ jobs:
     with:
       tx_project: ${{ github.workflow }}
       version: 3.8
+      py_bin_ver: 3.9
     secrets: inherit
   check:
     uses: ./.github/workflows/check.yml
     needs: sync
     with:
       tx_project: ${{ github.workflow }}
       version: 3.8
+      py_bin_ver: 3.9
     secrets: inherit