Update code for Rust 1.83.0

Test: m rust
Bug: 384401387
Change-Id: I00eea4220a17dc7847a07e1bbc7b02e5c15f51c4
diff --git a/guest/pvmfw/src/device_assignment.rs b/guest/pvmfw/src/device_assignment.rs
index bb2e6ce..fb485fe 100644
--- a/guest/pvmfw/src/device_assignment.rs
+++ b/guest/pvmfw/src/device_assignment.rs
@@ -166,7 +166,7 @@
     tokens: Vec<&'a [u8]>,
 }
 
-impl<'a> fmt::Debug for DtPathTokens<'a> {
+impl fmt::Debug for DtPathTokens<'_> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         let mut list = f.debug_list();
         for token in &self.tokens {