MFH: r542258

Update patch to Fix leaked keygrabs when layout changes to code
merged upstream.

PR: 244290
Submitted by: Aryeh Friedman <aryeh.friedman AT gmail.com>, many others
Obtained from: https://gitlab.xfce.org/xfce/libxfce4ui/-/merge_requests/2
Differential Revision: https://reviews.freebsd.org/D24995

Approved by: portmgr (joneum)