chore(master): release 2.39.3 [skip-ci]

[github-actions[bot]]

:robot: I have created a release beep boop

2.39.3 (2023-12-12)

Bug Fixes

• llm: Do not try to process an email without message contents (9e4cbdc)
• oauth2-outlook: Enforce account selection when authenticating OAuth2 connections for MS365 (1c6b56a)
• redis: Fixed Redis stats collections when using Upstash Redis (9730123)

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[github-actions[bot]]

:robot: Release is at https://github.com/postalsys/emailengine/releases/tag/v2.39.3 :sunflower: