Add /media to Caddy cache

installation/caddyfile-pleroma.example

@@ -23,6 +23,11 @@ example.tld  {
 
   # If you do not want to use the mediaproxy function, remove these lines.
   # To use this directive, you need the http.cache plugin for Caddy.
+  cache {
+    match_path /media
+    default_max_age 720m
+  }
+
   cache {
     match_path /proxy
     default_max_age 720m