environment: Require GnomeBluetooth 1.0

environment: Require GnomeBluetooth 1.0

libgnome-bluetooth will start to offer a 2.0 library version
depending on GTK4. Given that GNOME Shell already depends on
GTK3, it cannot use this next version of gnome-bluetooth. And
since GJS will automatically try and use the latest version
available of any library, Shell must specify it wants 1.0
explicitly.

Add a required GnomeBluetooth version number when importing it
for the status indicator.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2015>