CI failure：long lock when run ipv6-only ci job

[Yanansn]

https://github.com/spidernet-io/spiderpool/runs/8003600050?check_suite_focus=true

[bzsuni]

{"level":"DEBUG","ts":"2022-08-24T21:14:15.678Z","logger":"IP-GarbageCollection","caller":"gcmanager/pod_cache.go:105","msg":"create pod entry '&{PodName:per1219-219031280-99d78bfc-lsl5p Namespace:ns1218-205827656 NodeName:spiderpool0824202647-control-plane EntryUpdateTime:2022-08-24 21:14:15.677541127 +0000 UTC TracingStartTime:2022-08-24 21:14:15.677543228 +0000 UTC TracingGracefulTime:5s TracingStopTime:2022-08-24 21:14:20.677543228 +0000 UTC PodTracingReason:Deleted}'"} goroutine= 231 : Goroutine took lock 0.11807869 seconds for more than 0.10 seconds goroutine 231 [running]: goroutine 231 runtime/debug.Stack() goroutine 231 /usr/local/go/src/runtime/debug/stack.go:24 +0x72 goroutine 231 github.com/spidernet-io/spiderpool/pkg/lock.(*internalRWMutex).Unlock(0xc0006f4280) goroutine 231 /src/pkg/lock/lock_debug.go:52 +0xb9 goroutine 231 github.com/spidernet-io/spiderpool/pkg/gcmanager.(*PodDatabase).ApplyPodEntry(0xc0006f4280, 0xc0019718c0) goroutine 231 /src/pkg/gcmanager/pod_cache.go:106 +0x85f goroutine 231 github.com/spidernet-io/spiderpool/pkg/gcmanager.(*SpiderGC).onPodDel(0xc000428080, {0x291fb00?, 0xc001936800}) goroutine 231 /src/pkg/gcmanager/pod_informer.go:122 +0x2c6 goroutine 231 k8s.io/client-go/tools/cache.ResourceEventHandlerFuncs.OnDelete(...) goroutine 231 /src/vendor/k8s.io/client-go/tools/cache/controller.go:246 goroutine 231 k8s.io/client-go/tools/cache.(*processorListener).run.func1() goroutine 231 /src/vendor/k8s.io/client-go/tools/cache/shared_informer.go:820 +0x155 goroutine 231 k8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1(0xc000088f18) goroutine 231 /src/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:155 +0x49 goroutine 231 k8s.io/apimachinery/pkg/util/wait.BackoffUntil(0xc000710840?, {0x2d2e6a0, 0xc00059a960}, 0x1, 0xc000710840) goroutine 231 /src/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:156 +0xcf goroutine 231 k8s.io/apimachinery/pkg/util/wait.JitterUntil(0x4aaa25?, 0x3b9aca00, 0x0, 0x80?, 0xc000088f50?) goroutine 231 /src/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:133 +0x10e goroutine 231 k8s.io/apimachinery/pkg/util/wait.Until(...) goroutine 231 /src/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:90 goroutine 231 k8s.io/client-go/tools/cache.(*processorListener).run(0xc000428280?) goroutine 231 /src/vendor/k8s.io/client-go/tools/cache/shared_informer.go:812 +0x79 goroutine 231 k8s.io/apimachinery/pkg/util/wait.(*Group).Start.func1() goroutine 231 /src/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:73 +0x74 goroutine 231 created by k8s.io/apimachinery/pkg/util/wait.(*Group).Start goroutine 231 /src/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:71 +0xe5