change rustfmt configuration

This change is fully automated, except the `rustfmt.toml` changes and
a few clippy directives to allow specific functions with too many lines
because they are longer now.

src/service/rooms/auth_chain/data.rs

@@ -1,11 +1,15 @@
-use crate::Result;
 use std::{collections::HashSet, sync::Arc};
 
+use crate::Result;
+
 pub(crate) trait Data: Send + Sync {
     fn get_cached_eventid_authchain(
         &self,
         shorteventid: &[u64],
     ) -> Result<Option<Arc<HashSet<u64>>>>;
-    fn cache_auth_chain(&self, shorteventid: Vec<u64>, auth_chain: Arc<HashSet<u64>>)
-        -> Result<()>;
+    fn cache_auth_chain(
+        &self,
+        shorteventid: Vec<u64>,
+        auth_chain: Arc<HashSet<u64>>,
+    ) -> Result<()>;
 }