Refactor kafka to pure Go (franz-go), fix DBC stubs, update Dockerfile

pkg/validator/certificate_serial.go

@@ -3,7 +3,7 @@ package validator
 import (
 	"regexp"
 
-	"fiskerinc.com/modules/logger"
+	"github.com/fiskerinc/cloud-services/pkg/logger"
 	"github.com/go-playground/validator/v10"
 	"github.com/pkg/errors"
 )