Plugins: Fix "too many open files" error when verifying signature of plugin with many files (#39100)
Plugins: Fix "too many open files" error when verifying signature of plugin with many files (#39100)

* close file at loop end

* less tired approach
grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana