chore: Add external contributor to CHANGELOG.md (#19186)

This PR adds the external contributor to the CHANGELOG.md file, so that
they are credited for their contribution. See #19162

Co-authored-by: chargome <20254395+chargome@users.noreply.github.com>

Author: javascript-sdk-gitflow[bot]

CHANGELOG.md

@@ -4,7 +4,7 @@
 
 - "You miss 100 percent of the chances you don't take. — Wayne Gretzky" — Michael Scott
 
-Work in this release was contributed by @limbonaut. Thank you for your contribution!
+Work in this release was contributed by @limbonaut and @rfoel. Thank you for your contributions!
 
 ### Important Changes