Fix: Restore a mistakenly deleted %s format specifier

Author: KenHuPricer

charts/selenium-grid/templates/_helpers.tpl

@@ -136,7 +136,7 @@ nginx.ingress.kubernetes.io/proxy-ssl-secret: {{ tpl .sslSecret $ | quote }}
     {{- else if (empty $.Values.ingress.tls) }}
 nginx.ingress.kubernetes.io/proxy-ssl-secret: {{ tpl (printf "%s/%s" $.Release.Namespace (include "seleniumGrid.tls.fullname" $)) $ | quote }}
     {{- else if (index $.Values.ingress.tls 0).secretName }}
-nginx.ingress.kubernetes.io/proxy-ssl-secret: {{ tpl (printf "%s" $.Release.Namespace (index $.Values.ingress.tls 0).secretName) $ | quote }}
+nginx.ingress.kubernetes.io/proxy-ssl-secret: {{ tpl (printf "%s/%s" $.Release.Namespace (index $.Values.ingress.tls 0).secretName) $ | quote }}
     {{- end }}
   {{- end }}
   {{- with .upstreamKeepalive }}