Remove an unnecessary default argument
Libpng 1.6.13

Version bump from 1.6.12 to 1.6.13.

Closes #31833.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
libpng: update 1.6.13 bottle.
typesafe-activator 1.2.10

Closes #31837.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
pango: add HEAD

Closes #31800.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>