[Setup]: YAML not found

[Arleee1]

What's Going Wrong?

I got this error when running the install script:

Error: Template YAML file does not exist: .../OpenGauss/opengauss. Also failed to fetch shared template YAML from https://morph.new/opengauss/yaml: 404 Not Found```

### Steps Taken

It seems to have been fixed after running this:
```OPEN_GAUSS_TEMPLATE_TARGET=.github/morph/opengauss-template.yaml ./scripts/install.sh```

### Installation Method

Install script (curl | bash)

### Operating System

Ubuntu 24.04.4 LTS

### Python Version

3.12.3

### Gauss Version

_No response_

### Output of `gauss doctor`

```shell

Full Error Output

Open Gauss installer flow locally from target: opengauss
Error: Template YAML file does not exist: .../OpenGauss/opengauss. Also failed to fetch shared template YAML from https://morph.new/opengauss/yaml: 404 Not Found

What I've Already Tried

No response