Updated to comply with new clippy formatting rules (#2336)

## Issue Addressed

The latest version of Rust has new clippy rules & the codebase isn't up to date with them.

## Proposed Changes

Small formatting changes that clippy tells me are functionally equivalent

testing/state_transition_vectors/src/exit.rs

@@ -83,8 +83,8 @@ impl ExitTest {
 
         TestVector {
             title,
-            block,
             pre_state,
+            block,
             post_state,
             error,
         }