gitlab-ci-local: Under PopOS, docker run works, while gitlab-ci-local doesn't

TL;DR: This Issue happens under PopOS. The cause could not be pinpointed despite intensive debugging, so this Issue will stay unfixed. Currently the only workaround is to run kaniko with the --force flag. Using gitlab-ci-local --privileged will not work.

Minimal Project Structure Archive: Issue.zip

Expected behavior Like run.sh: the container builds successfully

Host information Linux: Pop!_OS 20.04 LTS gitlab-ci-local 4.27.1

Note This issue requires the same setup like #341, however the error is a new one.