fix(ci): change Docker Hub namespace from pezkuwichain/ to pezkuwi/

Docker Hub personal account namespace must match the username.
Updated all docker.io image references across workflows, actions,
docker-compose files, and zombienet configs.

.github/workflows/build-publish-eth-rpc.yml

@@ -12,7 +12,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  ETH_RPC_IMAGE_NAME: "docker.io/pezkuwichain/eth-rpc"
+  ETH_RPC_IMAGE_NAME: "docker.io/pezkuwi/eth-rpc"
 
 jobs:
   isdraft: