bump to 3.7.9.1

Makefile

@@ -2,7 +2,7 @@ PROJECT = prometheus_rabbitmq_exporter
 PROJECT_DESCRIPTION = RabbitMQ Prometheus.io metrics exporter
 RABBITMQ_MINOR_VERSION = 3.7
 # PROJECT_VERSION gets set in rabbitmq-components.mk to RABBITMQ_VERSION
-RABBITMQ_VERSION = $(RABBITMQ_MINOR_VERSION).2.5
+RABBITMQ_VERSION = $(RABBITMQ_MINOR_VERSION).9.1
 EZ = $(PROJECT)-$(PROJECT_VERSION)
 PROJECT_APP_EXTRA_KEYS = {maintainers, ["Ilya Khaprov"]}, \
   {licenses, ["MIT"]}, \