fix: resolve cargo-clippy CI errors in vendor crates

- Fix rebrand issues in pezkuwi-subxt signer (sp_core -> pezsp_core,
  sp_keyring -> pezsp_keyring, sp_runtime -> pezsp_runtime)
- Fix pezkuwi-zombienet-sdk tests (subxt::PolkadotConfig ->
  pezkuwi_subxt::PezkuwiConfig)
- Correct artifact paths in subxt examples (polkadot_metadata_*.scale)
- Fix type conversion issues in subxt examples (explicit constructors
  instead of .into() for generated types)
- Add pezkuwi-subxt-utils-stripmetadata dev-dependency to metadata crate
- Use original polkadot module from external frame-decode crate
- Fix Display trait usage for generated AccountId32 types

vendor/pezkuwi-subxt/subxt/examples/storage_iterating.rs

@@ -2,7 +2,7 @@
 use pezkuwi_subxt::{ext::futures::StreamExt, OnlineClient, PezkuwiConfig};
 
 // Generate an interface that we can use from the node's metadata.
-#[pezkuwi_subxt::subxt(runtime_metadata_path = "../artifacts/pezkuwi_metadata_small.scale")]
+#[pezkuwi_subxt::subxt(runtime_metadata_path = "../artifacts/polkadot_metadata_small.scale")]
 pub mod pezkuwi {}
 
 #[tokio::main]
@@ -34,7 +34,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 		let value = kv.value().decode()?;
 
 		let value_data = value.data;
-		println!("{account_id32}:\n  {value_data:?}");
+		println!("{account_id32:?}:\n  {value_data:?}");
 	}
 
 	Ok(())