fix(drainer): ignore errors in case the stream is empty (#2261)

Co-authored-by: Arun Raj M <jarnura47@gmail.com>

crates/redis_interface/src/errors.rs

@@ -28,6 +28,8 @@ pub enum RedisError {
     StreamTrimFailed,
     #[error("Failed to acknowledge Redis stream entry")]
     StreamAcknowledgeFailed,
+    #[error("Stream is either empty or not available")]
+    StreamEmptyOrNotAvailable,
     #[error("Failed to create Redis consumer group")]
     ConsumerGroupCreateFailed,
     #[error("Failed to destroy Redis consumer group")]