Get pod log timeout

[ghostloda]

当我通过cluster-gateway调用 pod GetLogs接口是会出现连接断开的问题，大概是1分钟左右。
version：v1.3.2
cluster-gateway日志如下：
2022/04/28 13:17:37 httputil: ReverseProxy read error during body copy: context deadline exceeded
E0428 13:17:37.307985 1 wrap.go:54] timeout or abort while handling: method=GET URI="/apis/cluster.core.oam.dev/v1alpha1/clustergateways/cluster1/proxy/api/v1/namespaces/kube-system/pods/kube-apiserver-node1/log?follow=true&tailLines=150" audit-ID="25c2a7a7-7a2f-4bf6-b805-105771b6ebfd"
E0428 13:17:37.308822 1 timeout.go:137] post-timeout activity - time-elapsed: 803.726µs, GET "/apis/cluster.core.oam.dev/v1alpha1/clustergateways/cluster1/proxy/api/v1/namespaces/kube-system/pods/kube-apiserver-node1/log" result: net/http: abort Handler
2022/04/28 13:21:46 httputil: ReverseProxy read error during body copy: context deadline exceeded
E0428 13:21:46.937195 1 wrap.go:54] timeout or abort while handling: method=GET URI="/apis/cluster.core.oam.dev/v1alpha1/clustergateways/cluster1/proxy/api/v1/namespaces/kube-system/pods/kube-apiserver-node1/log?follow=true&tailLines=150" audit-ID="7cd14081-a0d9-4bf7-a85d-a8db310e7b40"
E0428 13:21:46.943292 1 timeout.go:137] post-timeout activity - time-elapsed: 6.018041ms, GET "/apis/cluster.core.oam.dev/v1alpha1/clustergateways/cluster1/proxy/api/v1/namespaces/kube-system/pods/kube-apiserver-node1/log" result: net/http: abort Handler