Reverse dependencies for logstash-filter-json

Latest version of the following gems require logstash-filter-json

Gem	Version	Date	Downloads
logstash-output-slack +1.16 Million Downloads	`2.2.0` August 10, 2020	August 10, 2020	1.16 Million
logstash-output-rocketchat +7.74 Thousand Downloads	`0.1.3` January 30, 2019	January 30, 2019	7.74 Thousand
logstash-filter-event_dispatcher +1.18 Thousand Downloads	`0.1.0` December 16, 2022	December 16, 2022	1.18 Thousand