fix skills acquire

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 56.25000% with 7 lines in your changes are missing coverage. Please review.

Project coverage is 71.78%. Comparing base (5f631af) to head (3771832).

Files	Patch %	Lines
db/acquireSkill.ts	12.50%	7 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #322 +/- ## ======================================= Coverage 71.78% 71.78% ======================================= Files 47 47 Lines 12670 12671 +1 Branches 1331 1331 ======================================= + Hits 9095 9096 +1 Misses 3555 3555 Partials 20 20 ```

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