Fix error log for mailserver closing logic, as default timeout of 15 seconds of mail client package used triggers before our logic leading to error on close.
Resolves https://github.com/go-vikunja/api/issues/48
Reviewed-on: https://kolaente.dev/vikunja/api/pulls/1253
Reviewed-by: konrad <k@knt.li>
Co-authored-by: Luca Bernstein <luca@lucabernstein.com>
Co-committed-by: Luca Bernstein <luca@lucabernstein.com>
25609db567