refactor(ci): decouple from upstream Parity infrastructure

Replace Parity-specific infrastructure dependencies with Pezkuwi's own:
- S3 release uploads → GitHub Releases (gh CLI)
- parity-zombienet runner labels → pezkuwi-runner
- Grafana/Loki log URLs → disabled (use GH artifacts)
- Matrix notifications → disabled (pending Pezkuwi Matrix)
- paritytech issue links → pezkuwi tracking issues
- paritytech Docker image refs → pezkuwi-sdk-frame in cmd.py
- Add mirror-ci-image.yml workflow for GHCR image mirroring
- Document upstream shared tools (resolc, try-runtime, evm-test-suite)

.github/workflows/tests-evm.yml

@@ -34,6 +34,7 @@ jobs:
       - name: Update the Installed Python
         run: apt-get update && apt-get install -y python3-pip python3
       - name: Installing the Latest Resolc
+        # NOTE: resolc is an upstream shared tool from paritytech/revive (EVM compiler)
         run: |
           VERSION="0.5.0"
           ASSET_URL="https://github.com/paritytech/revive/releases/download/v$VERSION/resolc-x86_64-unknown-linux-musl"
@@ -119,6 +120,7 @@ jobs:
           cargo build --locked --release -p pez-revive-dev-node --bin pez-revive-dev-node
 
       - name: Checkout evm-tests
+        # NOTE: evm-test-suite is an upstream shared test suite from paritytech
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           repository: paritytech/evm-test-suite