Use correct file

Author: vmcj

.github/workflows/ansible-deployments.yml

@@ -24,7 +24,7 @@ jobs:
         run: sed -i 's/\[judgehost\]/[removed]/g' hosts; printf '\n[judgehost]\ngithub-action\tansible_host=localhost' >> hosts
       - name: Generate secure credentials
         working-directory: ./icpc-wf/ansible
-        run: mv group_vars/all/secret.yml{.secret,}
+        run: mv group_vars/all/secret.yml{.example,}
       - name: Run the default deployment method
         working-directory: ./icpc-wf/ansible
         run: cat hosts; make judgehost