fix: incorrect member matching when removing etcd nodes (#11488)

Signed-off-by: bo.jiang <bo.jiang@daocloud.io>

roles/remove-node/remove-etcd-node/tasks/main.yml

@@ -26,7 +26,7 @@
     - inventory_hostname in groups['etcd']
 
 - name: Lookup etcd member id
-  shell: "set -o pipefail && {{ bin_dir }}/etcdctl member list | grep {{ node_ip }} | cut -d, -f1"
+  shell: "set -o pipefail && {{ bin_dir }}/etcdctl member list | grep -w {{ node_ip }} | cut -d, -f1"
   args:
     executable: /bin/bash
   register: etcd_member_id