fix: Convert vendor/pezkuwi-subxt from submodule to regular directory

vendor/pezkuwi-subxt/subxt/src/blocks/mod.rs

@@ -0,0 +1,22 @@
+// Copyright 2019-2025 Parity Technologies (UK) Ltd.
+// This file is dual-licensed as Apache-2.0 or GPL-3.0.
+// see LICENSE for license details.
+
+//! This module exposes the necessary functionality for working with events.
+
+mod block_types;
+mod blocks_client;
+mod extrinsic_types;
+
+/// A reference to a block.
+pub use crate::backend::BlockRef;
+
+pub use block_types::Block;
+pub use blocks_client::BlocksClient;
+pub use extrinsic_types::{
+    ExtrinsicDetails, ExtrinsicEvents, ExtrinsicTransactionExtension,
+    ExtrinsicTransactionExtensions, Extrinsics, FoundExtrinsic, StaticExtrinsic,
+};
+
+// We get account nonce info in tx_client, too, so re-use the logic:
+pub(crate) use block_types::get_account_nonce;