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_fetch_dynamic.rs

@@ -15,7 +15,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 	// here, we assume that there is one value to provide at this entry
 	// to access a value; an AccountId32. In this example we don't know the
 	// return type and so we set it to `Value`, which anything can decode into.
-	let account: AccountId32 = dev::alice().public_key().into();
+	let account = AccountId32(dev::alice().public_key().0);
 	let storage_query =
 		pezkuwi_subxt::dynamic::storage::<(AccountId32,), Value>("System", "Account");