Fix libwacom9 dependency issue when upgrade Debian

The following packages have unmet dependencies:
libwacom9 : Depends: libwacom-common (= 2.1.0-2) but 1.12-1 is to be

installed

This should fix the issue on most cases:

# apt install libwacom9 libwacom-common=2.1.0-2

If the command above returns error:

E: Version ‘2.1.0-2’ for ‘libwacom-common’ was not found

Try this:

# apt remove libwacom2

When run the command above apt will offer to install libwacom9 > select yes. After that apt upgrade will work as always.