Add gitweb lister pod

make helm-diff is ok but shows too much since production and staging are a bit diverged currently (so not shown here)

Refs. swh/infra/sysadm-environment#4984 (closed)

Depends on !93 (merged)

changed the description

mentioned in issue swh/infra/sysadm-environment#4984 (closed)

changed the description

approved this merge request

added 3 commits

• 845b1279...21c8ae4e - 2 commits from branch staging
• 8a9ee2bb - Add gitweb lister pod

Compare with previous version

merged