Bug(eos_cli_config_gen): Fix the exit of name-server group between vrf host and root in monitor connectivity

[laxmikantchintakindi]

Issue Summary

When pushed below configuration to eos, it generates wrong configs.

Intended configs -

monitor connectivity
   vrf blue
      interface set VRF_GLOBAL_SET Vlan21-24, Vlan29-32
      local-interfaces VRF_GLOBAL_SET default
      !
      host server4
         description
         server4_connectivity_monitor
         local-interfaces VRF_GLOBAL_SET
         ip 10.10.20.1
         url https://server2.local.com
   name-server group mynameserver1

Show running config:

monitor connectivity
   vrf blue
      interface set VRF_GLOBAL_SET Vlan21,Vlan22,Vlan23,Vlan24,Vlan29,Vlan30,Vlan31,Vlan32
      local-interfaces VRF_GLOBAL_SET default
      !
      host server4
         description server4_connectivity_monitor
         ip 10.10.20.1
         url https://server2.local.com
         name-server group mynameserver1

Which component(s) of AVD impacted

No response

How do you run AVD ?

None

Steps to reproduce

Generated intended configs as shown and push to EOS. Check configs in show runnnig config.

Relevant log output

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