fix: throttleHost is not array in ExternalRateLimit #2234

Job	Run time
Chart checks	6s
Docker Images	0s
Codegen	4m 11s
Go build	2m 50s
Scan images for security vulnerabilities	5m 17s
Lint	2m 28s
Mocks	2m 17s
Shellcheck	4s
Integration Test with Tresor, SMI traffic policies, and egress disabled	12m 49s
Go gateway test e2e (6, latest, ubuntu-22.04)	19m 15s
Go mesh test e2e (1, ubuntu-22.04)	34m 43s
Go ingress test e2e (10)	16m 10s
Go gateway test e2e (6, v1.19.16-k3s1, ubuntu-20.04)	19m 51s
Go mesh test e2e (2, ubuntu-22.04)	44m 40s
Go gateway test e2e (6, v1.21.14-k3s1, ubuntu-22.04)	20m 10s
Go test	7m 28s
Go mesh test e2e (3, ubuntu-22.04)	40m 36s
Go gateway test e2e (6, v1.23.17-k3s1, ubuntu-22.04)	19m 56s
Go gateway test e2e (7, latest, ubuntu-22.04)	20m 11s
Go gateway test e2e (7, v1.19.16-k3s1, ubuntu-20.04)	18m 20s
Go mesh test e2e (4, ubuntu-22.04)	41m 4s
Go mesh test e2e (5, ubuntu-22.04)	40m 19s
Go mesh test e2e (v1.19.16-k3s1, Test traffic flowing from client to server with a Kubernetes Ser...	11m 14s
Go mesh test e2e (v1.27.16-k3s1, Test traffic flowing from client to server with a Kubernetes Ser...	13m 14s
Go statefulset test e2e (8)	17m 35s
Go retry test e2e (9)	15m 57s
	7h 10m 45s

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