gcutil 1.13.0

Closes #25668.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
vala 0.23.1

Closes #25667.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
macvim: refix finding Homebrew Python.
py2cairo: try and fix Homebrew Python linking.