test: use EMQX_IMAGE_TAG for influx test script

scripts/test/influx/docker-compose.yaml

@@ -34,7 +34,7 @@ services:
 
   emqx_1:
     container_name: emqx_1
-    image: emqx/emqx-enterprise:${EMQX_TAG}
+    image: emqx/emqx-enterprise:${EMQX_IMAGE_TAG}
     hostname: emqx_1.emqx.influx.io
     ports:
       - "1883:1883"
@@ -50,7 +50,7 @@ services:
 
   emqx_2:
     container_name: emqx_2
-    image: emqx/emqx-enterprise:${EMQX_TAG}
+    image: emqx/emqx-enterprise:${EMQX_IMAGE_TAG}
     hostname: emqx_1.emqx.influx.io
     environment:
       EMQX_LOG__CONSOLE_HANDLER__LEVEL: warning

scripts/test/influx/start.sh

@@ -3,7 +3,7 @@
 NET='emqx.influx.io'
 NODE1="emqx@emqx_1.$NET"
 NODE2="emqx@emqx_2.$NET"
-export EMQX_TAG='5.0.0-rc.1-g92797d72'
+export EMQX_IMAGE_TAG="${EMQX_IMAGE_TAG:-latest}"
 
 cd -P -- "$(dirname -- "${BASH_SOURCE[0]}")"