Please update for Logstash 7.2

[jbwl]

Installation of the plugin fails on Logstash 7.2 due to the gemspec.

$ logstash-plugin install logstash-output-clickhouse                                                            1 ↵  2.6.3
Validating logstash-output-clickhouse
Installing logstash-output-clickhouse
Plugin version conflict, aborting
ERROR: Installation Aborted, message: Bundler could not find compatible versions for gem "logstash-mixin-http_client":
  In snapshot (Gemfile.lock):
    logstash-mixin-http_client (= 7.0.0)

  In Gemfile:
    logstash-input-http_poller java was resolved to 5.0.1, which depends on
      logstash-mixin-http_client (~> 7) java

    logstash-output-clickhouse java was resolved to 0.1.0, which depends on
      logstash-mixin-http_client (>= 6.0.0, ~> 6.0) java

Running `bundle update` will rebuild your snapshot from scratch, using only
the gems in your Gemfile, which may resolve the conflict.