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.

pezkuwi/node/core/provisioner/src/disputes/prioritized_selection/tests.rs

@@ -221,7 +221,7 @@ fn partitioning_happy_case() {
 // achieved with or without the 'help' of a double vote (a validator voting for and against at the
 // same time). This makes the test a bit pointless but anyway I'm leaving it here to make this
 // decision explicit and have the test code ready in case this behavior needs to be further tested
-// in the future. Link to the PR with the discussions: https://github.com/paritytech/polkadot/pull/5567
+// in the future. Link to the PR with the discussions: https://github.com/pezkuwichain/kurdistan-sdk/issues/177
 #[test]
 fn partitioning_doubled_onchain_vote() {
 	let mut input = BTreeMap::<(SessionIndex, CandidateHash), DisputeStatus>::new();