Update README.md

Author: w-masahiro-ct

README.md

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 # fluent-plugin-kubernetes_metadata_filter, a plugin for [Fluentd](http://fluentd.org)
-[![Circle CI](https://circleci.com/gh/fabric8io/fluent-plugin-kubernetes_metadata_filter.svg?style=svg)](https://circleci.com/gh/fabric8io/fluent-plugin-kubernetes_metadata_filter)
+[![Test](https://github.com/fabric8io/fluent-plugin-kubernetes_metadata_filter/actions/workflows/test.yml/badge.svg)](https://github.com/fabric8io/fluent-plugin-kubernetes_metadata_filter/actions?query=workflow%3Atest)
+[![Lint](https://github.com/fabric8io/fluent-plugin-kubernetes_metadata_filter/actions/workflows/lint.yml/badge.svg)](https://github.com/fabric8io/fluent-plugin-kubernetes_metadata_filter/actions?query=workflow%3Alint)
 [![Code Climate](https://codeclimate.com/github/fabric8io/fluent-plugin-kubernetes_metadata_filter/badges/gpa.svg)](https://codeclimate.com/github/fabric8io/fluent-plugin-kubernetes_metadata_filter)
 [![Test Coverage](https://codeclimate.com/github/fabric8io/fluent-plugin-kubernetes_metadata_filter/badges/coverage.svg)](https://codeclimate.com/github/fabric8io/fluent-plugin-kubernetes_metadata_filter)
 [![Ruby Style Guide](https://img.shields.io/badge/code_style-rubocop-brightgreen.svg)](https://github.com/rubocop-hq/rubocop)