simplify readiness check for event-publisher-proxy (#18307)

* dont-deploy-epp-without-nats

* bump image

* undo bump image of ec

* change to disconnected

* simplify

* reenable nats

pkg/sender/jetstream/health.go

@@ -3,20 +3,13 @@ package jetstream
 import (
 	"net/http"
 
-	"github.com/nats-io/nats.go"
-
 	"github.com/kyma-project/kyma/components/event-publisher-proxy/pkg/handler/health"
 )
 
 // ReadinessCheck returns an instance of http.HandlerFunc that checks the readiness of the given NATS Handler.
 // It checks the NATS server connection status and reports 2XX if connected, otherwise reports 5XX.
 // It panics if the given NATS Handler is nil.
 func (s *Sender) ReadinessCheck(w http.ResponseWriter, _ *http.Request) {
-	if status := s.ConnectionStatus(); status != nats.CONNECTED {
-		s.namedLogger().Error("Readiness check failed: not connected to nats server")
-		w.WriteHeader(health.StatusCodeNotHealthy)
-		return
-	}
 	w.WriteHeader(health.StatusCodeHealthy)
 }