BUG: linkchecker error

[bsipocz]

I noticed this in a recent CI run, it will need a look into: https://github.com/executablebooks/meta/actions/runs/23994178685?pr=1296

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# Summary

| Status         | Count |
|----------------|-------|
| 🔍 Total       | 0     |
| ✅ Successful  | 0     |
| ⏳ Timeouts    | 0     |
| 🔀 Redirected  | 0     |
| 👻 Excluded    | 0     |
| ❓ Unknown     | 0     |
| 🚫 Errors      | 0     |
| ⛔ Unsupported | 0     |
No links were found. This usually indicates a configuration error.
If this was expected, set 'failIfEmpty: false' in the args.