fix: change buffered to buffered_unordened for faster collecting (#457)

Author: carlosvdr

tap-agent/src/agent/sender_account.rs

@@ -656,7 +656,7 @@ impl Actor for SenderAccount {
         stream::iter(allocation_ids)
             // Create a sender allocation for each allocation
             .map(|allocation_id| state.create_sender_allocation(myself.clone(), allocation_id))
-            .buffered(10) // Limit concurrency to 10 allocations at a time
+            .buffer_unordered(10) // Limit concurrency to 10 allocations at a time
             .collect::<Vec<anyhow::Result<()>>>()
             .await
             .into_iter()

tap-agent/src/agent/sender_accounts_manager.rs

@@ -169,7 +169,7 @@ impl Actor for SenderAccountsManager {
             .map(|(sender_id, allocation_ids)| {
                 state.create_or_deny_sender(myself.get_cell(), sender_id, allocation_ids)
             })
-            .buffered(10) // Limit concurrency to 10 senders at a time
+            .buffer_unordered(10) // Limit concurrency to 10 senders at a time
             .collect::<Vec<()>>()
             .await;