fix cashu invoice

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (f4a8e0a) 39.29% compared to head (28288f5) 42.30%.

:exclamation: Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #41 +/- ## ========================================== + Coverage 39.29% 42.30% +3.00% ========================================== Files 85 85 Lines 15352 15352 ========================================== + Hits 6033 6494 +461 + Misses 8482 7981 -501 - Partials 837 877 +40 ``` [see 8 files with indirect coverage changes](https://app.codecov.io/gh/CloakedServices/CloakedNetworkPoC/pull/41/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None)

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[callebtc]

Fixed after restart.