v2.26.8

🐛 Bug Fixes

• 7f9e9cb - add mailman api settings (PR #3802 by @rpcross)
• 91f24d2 - repair list export for IMAP (PR #3804 by @rpcross)

🔧 Chores

• f2473ac - remove datatracker volume mount in k8s (commit by @NGPixel)
• 5e5e000 - Update elasticsearch.yaml RABBITMQ_ERLANG_COOKIE (commit by @NGPixel)
• 1d5ab68 - fix RABBITMQ_ERLANG_COOKIE location (commit by @NGPixel)
• acc91e7 - add setup-erland-cookie initContainer (commit by @NGPixel)
• 489fa29 - Update build.yml workflow (commit by @NGPixel)