pango: upgrade to 1.44.5

pango: upgrade to 1.44.5

This release ships some files that were previously missing from git but needed
for the test suite.

Add RDEPENDS on locale-base-en-us as some of the tests explictly use it.

No need to depend on liberation-fonts, all of the tests use Cantarell.

With these changes, just one test fails (filed upstream as
https://gitlab.gnome.org/GNOME/pango/issues/405) and there are no skips.

Signed-off-by: Ross Burton <ross.burton@intel.com>