* fix(clients): surface bulk-reset auto-enable failures
BulkResetTraffic re-enables a disabled client before resetting its
traffic, but discarded the s.Update result with `_, _ =`, so a failed
re-enable was silent: the client stayed disabled with nothing logged,
unlike the single-client ResetTraffic path which already warns on the
same call. Check the error and log a warning to match, and add a
regression test covering BulkResetTraffic's previously-untested
re-enable path.
* ci: update Go toolchain for govulncheck
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Co-authored-by: Sanaei <ho3ein.sanaei@gmail.com>