chore(tvix): bump thiserror to 2.x

Change-Id: I6fca86af1ef8d4da37b01701ef9de1983eedce49
Reviewed-on: https://cl.tvl.fyi/c/depot/+/13190
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Ilan Joselevich <personal@ilanjoselevich.com>

tvix/eval/src/errors.rs

@@ -66,7 +66,8 @@ pub enum ErrorKind {
     /// Attempted to specify an invalid key type (e.g. integer) in a
     /// dynamic attribute name.
     #[error(
-        "found attribute name '{0}' of type '{}', but attribute names must be strings",
+        "found attribute name '{}' of type '{}', but attribute names must be strings",
+        .0,
         .0.type_of()
     )]
     InvalidAttributeName(Value),