[CI] No warning when notarization is skipped during Releaser workflow

### Parsec version

3.8.2

### Which platform(s) you have observed the problem

- [ ] Any
- [x] macOS
- [ ] Linux
- [ ] Windows
- [ ] Web

### Bug description

Packaging completes but the artifact is unusable. The workflow should fail instead.

### How should the application behave

_No response_

### Reproduction steps

```bash
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```

### Relevant output:

_No response_