when list plugins, an invalid plugin path will stop all plugins to be loaded

[AkisAya]

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Versions

1. dify-plugin-daemon 0.1.3
2. dify-api Version latest

Describe the bug
when list plugins, an invalid plugin path will stop all plugins to be loaded

i don't know how but a path is mistakenly created like this

and this invalid path will prevent all valid plugins to be loaded

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
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Additional context
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