gtkmm3.0 needs to be repackaged

Sat May 3 23:31:08 GMT 2025

The *.pc file name included in cairomm1.0 has changed, and gtkmm3.0
needs to adapt to this change.
```
$ cygcheck -cd libgtkmm3.0-devel libcairomm1.0-devel
Cygwin Package Information
Package Version
libcairomm1.0-devel 1.18.0-1
libgtkmm3.0-devel 3.22.2-1
$ pkg-config gtkmm-3.0 --libs
Package cairomm-1.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `cairomm-1.0.pc'
to the PKG_CONFIG_PATH environment variable
Package 'cairomm-1.0', required by 'pangomm-1.4', not found
Package 'cairomm-1.0', required by 'gtkmm-3.0', not found
Package 'cairomm-1.0', required by 'gdkmm-3.0', not found
$ grep Requires /usr/lib/pkgconfig/gtkmm-3.0.pc
Requires: atkmm-1.6 >= 2.24.2 giomm-2.4 >= 2.49.1 pangomm-1.4 >=
2.38.2 gtk+-3.0 >= 3.22.0 cairomm-1.0 >= 1.12.0 gdk-pixbuf-2.0 >=
2.35.5 gtk+-unix-print-3.0 gdkmm-3.0
$ cygcheck -l libcairomm1.0-devel | grep pkgconfig
/usr/lib/pkgconfig/cairomm-1.16.pc
/usr/lib/pkgconfig/cairomm-ft-1.16.pc
/usr/lib/pkgconfig/cairomm-pdf-1.16.pc
/usr/lib/pkgconfig/cairomm-png-1.16.pc
/usr/lib/pkgconfig/cairomm-ps-1.16.pc
/usr/lib/pkgconfig/cairomm-svg-1.16.pc
/usr/lib/pkgconfig/cairomm-xlib-1.16.pc
/usr/lib/pkgconfig/cairomm-xlib-xrender-1.16.pc
```