message: api: limit regex to 1024 chars in allow_origin_regex.
  I missed this one in this fixes oss-fuzz issue
diff: @@ -310,7 +310,7 @@ message CorsPolicy {
  // Specifies regex patterns that match allowed origins.
  //
  // An origin is allowed if either allow_origin or allow_origin_regex match.
  - repeated string allow_origin_regex = 8;
  + repeated string allow_origin_regex = 8 [(validate.rules).repeated .items.string.max_bytes = 1024];
  // Specifies the content for the *access-control-allow-methods* header.
  string allow_methods = 2;
  