The workflow update-graphql-files.yml is referencing action peter-evans/create-pull-request using references 938e6aea6f8dbdaced2064e948cb806c77fe87b8. However this reference is missing the commit 9507cdc7ac7c51349ae407533e709b92b594e6d1 which may contain fix to the some vulnerability.
The vulnerability fix that is missing by actions version could be related to:
(1) CVE fix
(2) upgrade of vulnerable dependency
(3) fix to secret leak and others.
Please consider to update the reference to the action.