We can build eds without canberra support.
This disables OAUTH2 feature of eds since it would need webkit and we don't
need it.
This also disables also dot locking for mails, because eds isn't used
for mails.
It is also not needed because we don't build the feedbackd daemon.
Mostly updating of dependencies.
Notable changes:
- Build abseil with position independent code
- Drop patch for libphonenumber and use -DREGENERATE_METADATA=OFF
instead to drop the java build dependency
- Drop gstreamer as it's included in the runtime already
- Drop cmocka as we're about to drop it's usage completely anyway