generate-cert job执行失败

### What happened?

报错如上， 但是翻了一下代码，generate-cert这个工具没有，发现调用这个decode的地方。

### What did you expect to happen?

generate-cert 这个job 能够正常运行，后续的server pod依赖生成的secret

### How can we reproduce it (as minimally and precisely as possible)?

kubectl cluster-info非127.0.0.1 回环地址。 不知道是不是跟这个有关系， 是内部修改dns的k8s集群

### Anything else we need to know?

_No response_

### Karpor version

```console
$ karpor -V
# paste output here
```

### OS version

```console
# On Linux:
$ cat /etc/os-release
# paste output here
$ uname -a
# paste output here

# On Windows:
C:\> wmic os get Caption, Version, BuildNumber, OSArchitecture
# paste output here
```

### Install tools

Start by inspecting the generate-cert job and the code path that invokes decode, as mentioned in the report. Reproduce the failure in a Kubernetes cluster where kubectl cluster-info is not 127.0.0.1 and DNS is modified internally. Done means the job runs successfully, creates the required secret, and allows the server pod to start.

Written by the indexing model from the issue text.