Re-generate gobject bindings to avoid build failures

Some rust packages fail to build with messages like:

[  401s] error[E0425]: cannot find value `G_SIGNAL_ACCUMULATOR_FIRST_RUN` in crate `crate::gobject_ffi`
[  401s]    --> /usr/share/cargo/registry/glib-0.20.9/src/gobject/auto/flags.rs:119:59
[  401s]     |
[  401s] 119 |         const ACCUMULATOR_FIRST_RUN = crate::gobject_ffi::G_SIGNAL_ACCUMULATOR_FIRST_RUN as _;
[  401s]     |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in `crate::gobject_ffi`

This is due to gobject bindings not autogenerated in this package. See: https://bugs.debian.org/1104991

Signed-off-by: Dylan Aïssi dylan.aissi@collabora.com