This plugin can not use in fluentd 1.15.2 with prometheus-client-4.0.0. Could you have the plan to support newer fluend version? The error message as below, thanks a lot.
/fluentd/vendor/bundle/ruby/3.1.0/gems/prometheus-client-4.0.0/lib/prometheus/client/push.rb:31:in `initialize': wrong number of arguments (given 3, expected 0; required keyword: job) (ArgumentError)
from /fluentd/vendor/bundle/ruby/3.1.0/gems/fluent-plugin-promtheus_pushgateway-0.1.0/lib/fluent/plugin/out_prometheus_pushgateway.rb:72:in `new'
from /fluentd/vendor/bundle/ruby/3.1.0/gems/fluent-plugin-promtheus_pushgateway-0.1.0/lib/fluent/plugin/out_prometheus_pushgateway.rb:72:in `configure'