xorg-server-21.1.12-1

[Jon Turney]

The following packages have been uploaded to the Cygwin distribution:

* xorg-server-21.1.12-1
* xorg-server-common-21.1.12-1
* xorg-server-debuginfo-21.1.12-1
* xorg-server-devel-21.1.12-1
* xorg-server-extra-21.1.12-1
* xorg-server-xorg-21.1.12-1
* xwinclip-21.1.12-1

These packages contain XWin and the other X.Org X11 servers.

In addition to upstream fixes [1][2][3], the following cygwin-specific 
changes have been made since 21.1.9-1:

* Fix a buffer overflow detected when compiling with _FORTIFY_SOURCE=3

[1] https://lists.x.org/archives/xorg-announce/2023-December/003436.html
[2] https://lists.x.org/archives/xorg-announce/2024-January/003442.html
[3] https://lists.x.org/archives/xorg-announce/2024-April/003499.html