v2.50.0

✨ New Features

• 037f385 - read message contents from blob store instead of filesystem (PR #4199 by @rpcross)
• 8afc9bb - allow multiple app apikeys per endpoint (PR #4215 by @rpcross)

🐛 Bug Fixes

• 26be767 - refactor import message exception handling (PR #4169 by @rpcross)
• a0847ae - improvements to MMDF handling (PR #4197 by @rpcross)
• 30e7f42 - fix new db CONN default int values (PR #4209 by @rpcross)
• 343ae76 - improve message redelivery handling (PR #4211 by @rpcross)
• bbb4c99 - fix missing attachments. Fixes #4210 (PR #4212 by @rpcross)
• 2bcef68 - update removed message page, check bucket for removed not disk (PR #4213 by @rpcross)

⚡ Performance Improvements

• 8fdc532 - apply CONN_MAX_AGE and CONN_HEALTH_CHECKS (PR #4198 by @rpcross)
• b18a82e - improve performance of group-by-thread requests (PR #4208 by @rpcross)

🔧 Chores

• 714d0c8 - deps: bump django-debug-toolbar from 6.3.0 to 7.1.0 (PR #4204 by @dependabot[bot])
• fe0e93f - deps: bump lxml-html-clean from 0.4.3 to 0.4.5 (PR #4203 by @dependabot[bot])
• 0911bd0 - deps: bump cryptography from 49.0.0 to 50.0.0 (PR #4202 by @dependabot[bot])
• 2d8a440 - deps: bump pytest-playwright from 0.8.0 to 0.9.0 (PR #4200 by @dependabot[bot])