chore(dashboard): bump dashboard version to v1.10.0-beta.1 & e1.8.0-beta.1

Makefile

@@ -10,8 +10,8 @@ include env.sh
 
 # Dashboard version
 # from https://github.com/emqx/emqx-dashboard5
-export EMQX_DASHBOARD_VERSION ?= v1.9.1
-export EMQX_EE_DASHBOARD_VERSION ?= e1.7.1
+export EMQX_DASHBOARD_VERSION ?= v1.10.0-beta.1
+export EMQX_EE_DASHBOARD_VERSION ?= e1.8.0-beta.1
 
 export EMQX_RELUP ?= true
 export EMQX_REL_FORM ?= tgz