fix: broken mysql-migrations workflow due to python-xmlsec

The latest version of python-xmlsec is breaking the mysql-migrations Github action. See xmlsec/python-xmlsec#314.

The recommended course of action is to pin the vesrion of python-xmlsec in the action.

.github/workflows/mysql-migrations.yml

@@ -52,7 +52,7 @@ jobs:
         pip uninstall -y mysqlclient
         pip install --no-binary mysqlclient mysqlclient
         pip uninstall -y xmlsec
-        pip install --no-binary xmlsec xmlsec
+        pip install --no-binary xmlsec xmlsec==1.3.13
 
     - name: Initiate Services
       run: |