ingest-to-phylogenetic: tee hash for easy debugging

Follows Zika PR #52
nextstrain/zika@cdd071e

.github/workflows/ingest-to-phylogenetic.yaml

@@ -98,7 +98,7 @@ jobs:
             key="${s3path#*/}"
 
             s3_hash="$(aws s3api head-object --no-sign-request --bucket "$bucket" --key "$key" --query Metadata.sha256sum --output text 2>/dev/null || echo "$no_hash")"
-            echo "${s3_hash}" >> ingest-output-sha256sum
+            echo "${s3_hash}" | tee -a ingest-output-sha256sum
           done
 
       - name: Check cache