Merge "Trivial fix shebang in keystone's fernet-node-sync.sh.j2" into stable/wallaby

Author: Zuul

ansible/roles/keystone/templates/fernet-node-sync.sh.j2

@@ -1,4 +1,4 @@
-!/bin/bash
+#!/bin/bash
 
 set -o errexit
 set -o pipefail