Approachable Concurrency Setting breaks ClientMiddleware conformance #814

import Foundation
import OpenAPIRuntime
import HTTPTypes

class AuthenticationMiddleware {
    
    private let bearerToken: String
    
    init(bearerToken: String) {
        self.bearerToken = bearerToken
    }
}

extension AuthenticationMiddleware: ClientMiddleware {
    func intercept(
        _ request: HTTPRequest,
        body: HTTPBody?,
        baseURL: URL,
        operationID: String,
        next: (HTTPRequest, HTTPBody?, URL) async throws -> (HTTPResponse, HTTPBody?)
    ) async throws -> (HTTPResponse, HTTPBody?) {
        var request = request
        request.headerFields[.authorization] = "Bearer \(bearerToken)"
        return try await next(request, body, baseURL)
    }
}