fontconfig: Update to version 2.16.2

fontconfig: Update to version 2.16.2

- Update from version 2.16.0 to 2.16 2
- Update of rootfile
- Default build system has been moved from autotools to meson. Autotools will likely be
   removed in next version.
- Changelog
    2.16.2
      meson: do not require libintl if nls feature is disabled
      ci: Add back Android build in a common way
      ci: drop Language to make sure they are applied as default style
      ci: Change the default build system to meson
      ci: Stop on fail anyway
      ci: default to clean-build
      ci: detect OS from os-release if no FC_DISTRO_NAME is set
      ci: add missing dependency of pytest
      ci: Set more timeout for pytest
      ci: fix too many open files on test
      ci: add missing dependency of requests
      meson: Use Requires.private instead of Requires
      Upgrade bindgen in Fontations enabled Rust builds
      [Fontations] Add internal PatternBuilder abstraction
      meson: don't force build of a shared library
      meson.build: define a 'c' standard for the project (C99 and C11)
    2.16.1
      meson: create fc_cachedir at the installation time
      meson: set WORDS_BIGENDIAN
      ci: get back MinGW build to rawhide
      meson: make sure config.h contains config-fixups.h for OSX
      Reformatting with clang-format
      ci: Add a workflow to check the coding style
      ci: workaround conflict between systemd and systemd-standalone-sysusers
      conf.d: Add Adwaita Sans as system-ui
      ci: disable  job tentatively
      ci: Add a release workflow
      [Fontations] Allow linkage to internals in tests
      meson.build: explicitly check for pthread support

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