Support writefile step in pipeline

### What is version of KubeSphere DevOps has the issue?

v3.4.1

### How did you install the Kubernetes? Or what is the Kubernetes distribution?

kubekey

### Describe this feature

```
pipeline {
agent any

stages {
stage('Generate Dockerfile and Build Image') {
steps {
writeFile file: 'test', text: '''
abcdefg
'''

writeFile file: 'Dockerfile', text: '''
FROM nginx:latest
ADD test ./
'''

sh "docker build -t test:latest ."
}
}
}
}
```

### Additional information

_No response_