wacom: Use g_auto for variables

11 jobs for wacom-g-auto in 7 minutes and 45 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Build
passed #220814
build

00:03:43

 
  Test
passed #220816
asan

00:04:01

passed #220815
test

00:01:31

 
  Manual
manual #220821
allowed to fail manual
armv8
manual #220817
allowed to fail manual
flatpak
manual #220820
allowed to fail manual
msan
manual #220822
allowed to fail manual
ppc64le
manual #220818
allowed to fail manual
tsan
manual #220819
allowed to fail manual
ubsan
 
  Review
manual #220823
allowed to fail manual
review
manual #220824
allowed to fail manual
stop_review