examples: Update per Priority changes

[sdroege]

 error: lint `clippy::derive_hash_xor_eq` has been renamed to `clippy::derived_hash_with_manual_eq`
 --> gtk/src/lib.rs:8:10
  |
8 | #![allow(clippy::derive_hash_xor_eq)]
  |          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::derived_hash_with_manual_eq`
  |
  = note: `-D renamed-and-removed-lints` implied by `-D warnings`