chore: fix compiler warnings in clientruntime (#386)

Author: wooj2

Packages/ClientRuntime/Sources/Networking/Http/CRT/CRTClientEngine.swift

@@ -37,7 +37,7 @@ public class CRTClientEngine: HttpClientEngine {
             logger.error("Server name was not able to be set in TLS Connection Options. TLS Negotiation will fail.")
             logger.error("Error: \(err.localizedDescription)")
         }
-        var socketOptions = SocketOptions(socketType: .stream)
+        let socketOptions = SocketOptions(socketType: .stream)
 #if os(iOS) || os(watchOS)
         socketOptions.connectTimeoutMs = 30_000
 #endif

Packages/ClientRuntime/Sources/Networking/Http/Middlewares/ContentMD5Middleware.swift

@@ -28,7 +28,7 @@ public struct ContentMD5Middleware<OperationStackOutput: HttpResponseBinding,
                 return next.handle(context: context, input: input)
             }
             input.headers.update(name: "Content-MD5", value: base64Encoded)
-        case .stream(let stream):
+        case .stream:
             guard let logger = context.getLogger() else {
                 return next.handle(context: context, input: input)
             }