fix:Remove potentially injectable variable from output

[adrikim-mp]

Summary

• Removes the PR title from being echoed to output. A PR title, being user-controlled, can technically be set to something malicious (eg. ; echo $GITHUB_TOKEN_OF_CHOICE) since it's not escaped. However, since we already have robust controls around untrusted PR environments, removing this is more of a defense-in-depth measure.

Testing Plan

• No tests needed, just a text change.