Update CHANGELOG.md to fix bad link (#430)

Author: karenzone

CHANGELOG.md

@@ -5,7 +5,7 @@
  - ECS compatibility enablement: Adds alias to support upcoming ECS v8 with the existing ECS v1 implementation
 
 ## 6.1.7
- - [DOC] Remove limitations topic and link [#428](https://github.com/logstash-plugins/logstash-input-http/pull/428)
+ - [DOC] Remove limitations topic and link [#428](https://github.com/logstash-plugins/logstash-input-beats/pull/428)
 
 ## 6.1.6
  - [DOC] Applied more attributes to manage plugin name in doc content, and implemented conditional text processing. [#423](https://github.com/logstash-plugins/logstash-input-http/pull/423)