Change redacted output for domain whois query

The redacted text for the email field displays a longer prompt to
contact the registrar, per the request filed at b/123573370.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=232716133

java/google/registry/config/RegistryConfigSettings.java

@@ -89,6 +89,7 @@ public class RegistryConfigSettings {
     public String registryAdminClientId;
     public String premiumTermsExportDisclaimer;
     public String reservedTermsExportDisclaimer;
+    public String whoisRedactedEmailText;
     public String whoisDisclaimer;
     public String rdapTos;
     public String rdapTosStaticUrl;