Just fixes the build, not sure if this actually enables any functionality (yet) on FreeBSD. However, it does seem to at least start:
```
time="2025-08-18T01:02:58-04:00" level=info msg="Starting runner daemon"
```
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<!--URL:https://code.forgejo.org/forgejo/runner-->
- bug fixes
- [PR](https://code.forgejo.org/forgejo/runner/pulls/882): <!--number 882 --><!--line 0 --><!--description Zml4OiBmaXhlcyB0aGUgYnVpbGQgb24gRnJlZUJTRCBbc2tpcCBjYXNjYWRlXQ==-->fix: fixes the build on FreeBSD [skip cascade]<!--description-->
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Reviewed-on: https://code.forgejo.org/forgejo/runner/pulls/882
Reviewed-by: earl-warren <earl-warren@noreply.code.forgejo.org>
Co-authored-by: Daniel Morante <daniel@morante.net>
Co-committed-by: Daniel Morante <daniel@morante.net>
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