grafana: single quote LDAP password

roles/grafana/templates/ldap.toml.j2

@@ -24,7 +24,7 @@ ssl_skip_verify = false
 bind_dn = "{{ grafana.ldap.bind_dn }}"
 # Search user bind password
 # If the password contains # or ; you have to wrap it with triple quotes. Ex """#password;"""
-bind_password = "{{ grafana.ldap.bind_password }}"
+bind_password = '{{ grafana.ldap.bind_password }}'
 
 # User search filter, for example "(cn=%s)" or "(sAMAccountName=%s)" or "(uid=%s)"
 search_filter = "(cn=%s)"