use suggested patten

Co-authored-by: Jan-Otto Kröpke <[email protected]>
Signed-off-by: Joshua Hügli <[email protected]>

Author: joschi36

production/helm/loki/templates/_helpers.tpl

@@ -812,7 +812,9 @@ http {
     {{- end }}
 
     location = / {
-      {{ .Values.gateway.nginxConfig.locationSnippet | nindent 6 }}
+      {{- with .Values.gateway.nginxConfig.locationSnippet }}
+      {{- . | nindent 6 }}
+      {{- end }}
       return 200 'OK';
       auth_basic off;
     }