fix(deps): update module github.com/prometheus/alertmanager to v0.28.1#49

konflux-internal-p02[bot] wants to merge 1 commit intorelease-9.0ibmstorage/snmp-notifier-container:release-9.0from

konflux/mintmaker/release-9.0/github.com-prometheus-alertmanager-0.xibmstorage/snmp-notifier-container:konflux/mintmaker/release-9.0/github.com-prometheus-alertmanager-0.xCopy head branch name to clipboard