feat: Rebrand Polkadot/Substrate references to PezkuwiChain

This commit systematically rebrands various references from Parity Technologies'
Polkadot/Substrate ecosystem to PezkuwiChain within the kurdistan-sdk.

Key changes include:
- Updated external repository URLs (zombienet-sdk, parity-db, parity-scale-codec, wasm-instrument) to point to pezkuwichain forks.
- Modified internal documentation and code comments to reflect PezkuwiChain naming and structure.
- Replaced direct references to  with  or specific paths within the  for XCM, Pezkuwi, and other modules.
- Cleaned up deprecated  issue and PR references in various  and  files, particularly in  and  modules.
- Adjusted image and logo URLs in documentation to point to PezkuwiChain assets.
- Removed or rephrased comments related to external Polkadot/Substrate PRs and issues.

This is a significant step towards fully customizing the SDK for the PezkuwiChain ecosystem.

pezcumulus/zombienet/zombienet-sdk/tests/utils.rs

@@ -0,0 +1,22 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+use zombienet_sdk::{LocalFileSystem, Network, NetworkConfig};
+
+pub const BEST_BLOCK_METRIC: &str = "block_height{status=\"best\"}";
+
+pub async fn initialize_network(
+	config: NetworkConfig,
+) -> Result<Network<LocalFileSystem>, anyhow::Error> {
+	// Spawn network
+	let spawn_fn = zombienet_sdk::environment::get_spawn_fn();
+	let network = spawn_fn(config).await?;
+
+	// Do not terminate network after the test is finished.
+	// This is needed for CI to get logs from k8s.
+	// Network shall be terminated from CI after logs are downloaded.
+	// NOTE! For local execution (native provider) below call has no effect.
+	network.detach().await;
+
+	Ok(network)
+}