Merge branch 'dir-name-fix' into 'main'

Change start of name of temporary directory from devkit_image_ to tmp_image_.

Closes #6

See merge request !12
6 jobs for main in 6 minutes and 2 seconds (queued for 1 second)
Name Stage Failure
autopkgtest-pureos-byzantium-package Test Package
The following additional packages will be installed:
The following NEW packages will be installed:
eatmydata libeatmydata1
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 31.6 kB of archives.
After this operation, 74.8 kB of additional disk space will be used.
E: You don't have enough free space in /var/cache/apt/archives/.
ERROR: Job failed: exit code 1