ErrKafkaTopicExprInvalid should print invalid expression

[CharlesCheung96]

[INFO] [middleware.go:48] [/api/v2/changefeeds/changefeed-xxx] [status=400] [method=PUT] [path=/api/v2/changefeeds/changefeed-xxx] [query=] [ip=***] [user-agent=Go-http-client/1.1] [client-version=] [error="[CDC:ErrChangefeedUpdateRefused]changefeed update error: [CDC:ErrKafkaTopicExprInvalid]invalid topic expression"] [errorVerbose="[CDC:ErrChangefeedUpdateRefused]changefeed update error: [CDC:ErrKafkaTopicExprInvalid]invalid topic expression\ngithub.com/pingcap/errors.AddStack\n\tgithub.com/pingcap/errors@v0.11.5-0.20220729040631-518f63d66278/errors.go:174\ngithub.com/pingcap/errors.(*Error).GenWithStackByCause\n\tgithub.com/pingcap/errors@v0.11.5-0.20220729040631-518f63d66278/normalize.go:307\ngithub.com/pingcap/tiflow/cdc/api/v2.APIV2HelpersImpl.verifyUpdateChangefeedConfig\n\tgithub.com/pingcap/tiflow/cdc/api/v2/api_helpers.go:325\ngithub.com/pingcap/tiflow/cdc/api/v2.(*OpenAPIV2).updateChangefeed\n\tgithub.com/pingcap/tiflow/cdc/api/v2/changefeed.go:374\ngithub.com/gin-gonic/gin.(*Context).Next\n\tgithub.com/gin-gonic/gin@v1.7.4/context.go:165\ngithub.com/pingcap/tiflow/cdc/api/middleware.ForwardToOwnerMiddleware.func1\n\tgithub.com/pingcap/tiflow/cdc/api/middleware/middleware.go:95\ngithub.com/gin-gonic/gin.(*Context).Next\n\tgithub.com/gin-gonic/gin@v1.7.4/context.go:165\ngithub.com/pingcap/tiflow/cdc/api/middleware.ErrorHandleMiddleware.func1\n\tgithub.com/pingcap/tiflow/cdc/api/middleware/middleware.go:64\ngithub.com/gin-gonic/gin.(*Context).Next\n\tgithub.com/gin-gonic/gin@v1.7.4/context.go:165\ngithub.com/pingcap/tiflow/cdc/api/middleware.LogMiddleware.func1\n\tgithub.com/pingcap/tiflow/cdc/api/middleware/middleware.go:38\ngithub.com/gin-gonic/gin.(*Context).Next\n\tgithub.com/gin-gonic/gin@v1.7.4/context.go:165\ngithub.com/pingcap/tiflow/cdc/api/middleware.CheckServerReadyMiddleware.func1\n\tgithub.com/pingcap/tiflow/cdc/api/middleware/middleware.go:103\ngithub.com/gin-gonic/gin.(*Context).Next\n\tgithub.com/gin-gonic/gin@v1.7.4/context.go:165\ngithub.com/gin-gonic/gin.CustomRecoveryWithWriter.func1\n\tgithub.com/gin-gonic/gin@v1.7.4/recovery.go:99\ngithub.com/gin-gonic/gin.(*Context).Next\n\tgithub.com/gin-gonic/gin@v1.7.4/context.go:165\ngithub.com/gin-gonic/gin.(*Engine).handleHTTPRequest\n\tgithub.com/gin-gonic/gin@v1.7.4/gin.go:489\ngithub.com/gin-gonic/gin.(*Engine).ServeHTTP\n\tgithub.com/gin-gonic/gin@v1.7.4/gin.go:445\nnet/http.serverHandler.ServeHTTP\n\tnet/http/server.go:2947\nnet/http.(*conn).serve\n\tnet/http/server.go:1991\nruntime.goexit\n\truntime/asm_amd64.s:1594"]