flatpak 1.16.0

Bug fixes:

 * Update libglnx to 2024-12-06:
    - Fix an assertion failure if creating a parent directory encounters a
      dangling symlink (GNOME/libglnx#1)
    - Fix a Meson warning

* Don't emit terminal progress indicator escape sequences by default. They are
  interpreted as notifications by some terminal emulators. (#6052)

* Fix introspection annotations in libflatpak

Enhancements:

* Add the `FLATPAK_TTY_PROGRESS` environment variable, which re-enables the
  terminal progress indicator escape sequences added in 1.15.91.

* Document the `FLATPAK_FANCY_OUTPUT` environment variable, which allows
  disabling the fancy formatting when outputting to a terminal.

Git-EVTag-v0-SHA512: f01f43dfd872034bf571a2d2fd73cf5ea4e6c5dc8fd3e7a55af49b8f48c701573a5466ed3f65690e177853f4a0fe0377b3b18e87fdbd53cb171b60f557978f82