style: Migrate to stable-only rustfmt configuration

- Remove nightly-only features from .rustfmt.toml and vendor/ss58-registry/rustfmt.toml
- Removed features: imports_granularity, wrap_comments, comment_width,
  reorder_impl_items, spaces_around_ranges, binop_separator,
  match_arm_blocks, trailing_semicolon, trailing_comma
- Format all 898 affected files with stable rustfmt
- Ensures long-term reliability without nightly toolchain dependency

pezbridges/snowbridge/pezpallets/outbound-queue/src/lib.rs

@@ -308,8 +308,8 @@ pub mod pezpallet {
 			// Yield if the maximum number of messages has been processed this block.
 			// This ensures that the weight of `on_finalize` has a known maximum bound.
 			ensure!(
-				MessageLeaves::<T>::decode_len().unwrap_or(0) <
-					T::MaxMessagesPerBlock::get() as usize,
+				MessageLeaves::<T>::decode_len().unwrap_or(0)
+					< T::MaxMessagesPerBlock::get() as usize,
 				Yield
 			);