pango: Update to version 1.56.4

pango: Update to version 1.56.4

- Update from version 1.56.3 to 1.56.4
- Update of rootfile
- Changelog
    1.56.4
	- fontconfig: Improve the add_font_file implementation
	- fontconfig: Combine font features and style variants
	- fontconfig: Make sure font faces stay alive
	- win32: Drop some caching
	- win32: Make sure font faces stay alive
	- win32: Modernize and simplify the code
	- win32: Stop synthesizing fonts
	- win32: Implement list models
	- coretext: Support synthetic small caps
	- layout: Avoid assertions in line breaking
	- build: Require GLib 2.82

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>