[BUG]There is an extra % at the end of the installation information

[tianyue86]

Describe the env

Kubernetes: v1.30.4-eks-a737599
KubeBlocks: 1.0.0-beta.1
kbcli: 1.0.0-alpha.1

To Reproduce
Steps to reproduce the behavior:

1. install addon: there is an extra % at the end of the installation information
   tianyue@apeclouds-MacBook-Pro kubeblocks-addons % kbcli addon install neon --version 1.0.0-alpha.0
   addon neon installed successfully
   cluster type "neon" register successful.
   Use "kbcli cluster create neon" to create a neon cluster%

Expected behavior
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