[RedisIO][java] Writing with method SADD doesn't set TTL

[https://github.com/apache/beam/blob/master/sdks/java/io/redis/src/main/java/org/apache/beam/sdk/io/redis/RedisIO.java](https://github.com/apache/beam/blob/master/sdks/java/io/redis/src/main/java/org/apache/beam/sdk/io/redis/RedisIO.java)
```

private void writeUsingSaddCommand(KV record, Long expireTime) {
String key = record.getKey();

String value = record.getValue();

pipeline.sadd(key, value);
}

```

Imported from Jira [BEAM-8408](https://issues.apache.org/jira/browse/BEAM-8408). Original Jira may contain additional context.
Reported by: asokolov.