engine/install: add Fedora 41, remove Fedora 39

Fedora 39 is EOL next week, so slightly ahead of time, but new users
should not be recommended to use it.

Signed-off-by: Sebastiaan van Stijn <[email protected]>

Author: thaJeztah

content/manuals/engine/install/fedora.md

@@ -26,8 +26,8 @@ To get started with Docker Engine on Fedora, make sure you
 To install Docker Engine, you need a maintained version of one of the following
 Fedora versions:
 
-- Fedora 39
 - Fedora 40
+- Fedora 41
 
 ### Uninstall old versions