build(docker): WORKDIR /var/lib/duniter

In line with Duniter home.
7 jobs for pini
Status Name Job ID Coverage
  Tests
manual tests #53028
redshift manual
 
  Package
created package:test:docker-test-image #53032
redshift allowed to fail manual
created releases:test #53030
redshift allowed to fail manual
 
  Quality
created audit_dependencies #53036
redshift
created fmt_and_clippy #53034
redshift
 
  Integration
created sync_g1 #53038
redshift allowed to fail manual
created sync_gtest #53039
redshift allowed to fail manual