a2dismod: update en link to latest instead of buster

pages/linux/a2dismod.md

@@ -1,7 +1,7 @@
 # a2dismod
 
 > Disable an Apache module on Debian-based OSes.
-> More information: <https://manpages.debian.org/buster/apache2/a2dismod.8.en.html>.
+> More information: <https://manpages.debian.org/latest/apache2/a2dismod.8.en.html>.
 
 - Disable a module: