Add changelog for v1.13.1

Signed-off-by: divyansh42 <[email protected]>

Author: divyansh42

Diff for: CHANGELOG.md

@@ -1,5 +1,8 @@
 # openshift-tools-installer Changelog
 
+## v1.13.1
+- Apply custom filters to chart-verifier install requests [#109](https://github.com/redhat-actions/openshift-tools-installer/pull/109)
+
 ## v1.13
 - Update action to run on Node20. https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/
 - Update @actions/http-client to 2.2.1