Add a changelog entry for adding ignore_pipeline_branch_filters param

Author: oguzkocer

CHANGELOG.md

@@ -21,6 +21,7 @@ _None_
 - Add "Mobile Secrets" to `configure_update` current branch message to clarify which repo it's referring to. [#455]
 - `buildkite_trigger_build` now prints the web URL of the newly scheduled build, to allow you to easily open it via cmd-click. [#460]
 - Add the branch information to the 'This is not a release branch' error that's thrown from complete code freeze lane. [#461]
+- Adds `ignore_pipeline_branch_filters=true` parameter to the API call triggering a Buildkite build [#468]
 
 ## 7.0.0