fix merge issue and optimize some invalid usage

.github/dependabot.yml

.github/workflows/github-actions.yml

CHANGE.md

README.md

README_CN.md

cluster/cluster_impl/base_cluster_invoker.go

cluster/cluster_impl/failover_cluster_test.go

cluster/directory/base_directory.go

cluster/directory/base_directory_test.go

cluster/directory/static_directory.go

cluster/loadbalance/consistent_hash_test.go

cluster/router/chain/chain.go

cluster/router/chain/chain_test.go

cluster/router/condition/app_router_test.go

cluster/router/condition/factory_test.go

cluster/router/condition/file.go

cluster/router/condition/listenable_router.go

cluster/router/condition/router.go

cluster/router/condition/router_rule_test.go

cluster/router/condition/router_test.go