Upgrade to Authelia 4.38.6

After a very long peroid of inactivity automated Docker container minor upgrade by means of Watchtower infrastructure.

v4.38.0 (2024-3-14)
v4.38.1 (2024-3-15)
v4.38.2 (2024-3-15)
v4.38.3 (2024-3-17)
v4.38.4 (2024-3-18)
v4.38.5 (2024-3-20)
v4.38.6 (2024-3-20)