Fix reqwest custom user-agent for S3

Author: Mechanix97

aggregation_mode/src/backend/s3.rs

@@ -6,15 +6,23 @@ pub enum GetBatchProofsError {
     Deserialization,
     EmptyBody,
     StatusFailed,
+    ReqwestClientFailed
 }
 
+// needed to make S3 bucket work
+const DEFAULT_USER_AGENT: &str = "proof-aggregator/aligned-layer";
+
 pub async fn get_aligned_batch_from_s3(
     url: String,
 ) -> Result<Vec<VerificationData>, GetBatchProofsError> {
-    let response = reqwest::get(url)
+    let client = reqwest::Client::builder()
+    .user_agent(DEFAULT_USER_AGENT)
+    .build()
+    .map_err(|_| GetBatchProofsError::ReqwestClientFailed)?;
+
+    let response = client.get(url).send()
         .await
         .map_err(|_| GetBatchProofsError::Fetching)?;
-
     if !response.status().is_success() {
         return Err(GetBatchProofsError::StatusFailed);
     }