Fix race condition with Client

Author: joshuawright11

Sources/Alchemy/Client/Client.swift

@@ -269,10 +269,11 @@ public final class Client: Service {
             let httpClientOverride = req.config.map { HTTPClient(eventLoopGroupProvider: .shared(httpClient.eventLoopGroup), configuration: $0) }
             defer { try? httpClientOverride?.syncShutdown() }
             let _request = try req._request
-            let promise = Loop.group.next().makePromise(of: Response.self)
+            let loop = Loop.group.next()
+            let promise = loop.makePromise(of: Response.self)
             let delegate = ResponseDelegate(request: req, promise: promise, allowStreaming: req.streamResponse)
             let client = httpClientOverride ?? httpClient
-            _ = client.execute(request: _request, delegate: delegate, deadline: deadline, logger: Log.logger)
+            _ = client.execute(request: _request, delegate: delegate, eventLoop: .delegateAndChannel(on: loop), deadline: deadline, logger: Log.logger)
             return try await promise.futureResult.get()
         }
     }