Export Weimin as author of commits to GitHub

Also adds Guy to list of CONTRIBUTORS and removes Xooglers (who definitely won't be contributing more code).

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=202476218

java/google/registry/dns/writer/clouddns/CloudDnsWriterModule.java

@@ -59,6 +59,7 @@ public abstract class CloudDnsWriterModule {
   @IntoMap
   @StringKey(CloudDnsWriter.NAME)
   abstract DnsWriter provideWriter(CloudDnsWriter writer);
+
   @Provides
   @IntoSet
   @Named("dnsWriterNames")