Enable clippy::explicit_auto_deref (#8753)

This PR enables the
[`clippy::explicit_auto_deref`](https://rust-lang.github.io/rust-clippy/master/index.html#/explicit_auto_deref)
rule and fixes the outstanding violations.

Release Notes:

- N/A

crates/collab/src/db/queries/users.rs

@@ -80,7 +80,7 @@ impl Database {
                 github_login,
                 github_user_id,
                 github_email,
-                &*tx,
+                &tx,
             )
             .await
         })