我在 kubernetes 集群中使用内置的身份服务器配置了 APIM。一切正常，但最近我们收到与过期证书相关的错误：
2021-07-29 14:30:35,308 INFO [wso2/gateway/src/gateway/utils] - [APIGatewayListener] [-] HTTP listener is active on port 9090
[ballerina/http] started HTTPS/WSS listener 0.0.0.0:9095
2021-07-29 14:30:35,310 INFO [wso2/gateway/src/gateway/utils] - [APIGatewayListener] [-] HTTPS listener is active on port 9095
2021-07-29 14:31:31,816 INFO [wso2/gateway/src/gateway/utils] - [NotificationEventListener] [-] Recieved event with type : SUBSCRIPTIONS_CREATE
2021-07-29 14:31:59,940 ERROR [ballerina/jwt] - Public key certificate validity period has passed.
2021-07-29 14:31:59,943 ERROR [ballerina/jwt] - JWT validation failed. : error {ballerina/jwt}Error message=Public key certificate validity period has passed.
2021-07-29 14:31:59,945 ERROR [wso2/gateway/src/gateway/utils] - Failed to authenticate with jwt auth provider. : error {ballerina/auth}Error message=JWT validation failed. cause=error {ballerina/jwt}Error message=Public key certificate validity period has passed.
之后我得到另一个错误相关的签名验证失败：
2021-07-29 19:16:42,517 ERROR [ballerina/jwt] - JWT signature validation has failed.
2021-07-29 19:16:42,517 ERROR [ballerina/jwt] - JWT validation failed. : error {ballerina/jwt}Error message=JWT signature validation has failed.
2021-07-29 19:16:42,518 ERROR [wso2/gateway/src/gateway/utils] - Failed to authenticate with jwt auth provider. : error {ballerina/auth}Error message=JWT validation failed. cause=error {ballerina/jwt}Error message=JWT signature validation has failed.
我想我需要将此新证书添加到 APIM 的某个部分，或者可能需要将其添加到密钥库。你能帮忙吗？